Formatting a PC without admin rights











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I was at a flea market the other day and bought a computer. However, the computer is locked and I can't login to it. Is there a way to format the computer and install Linux on it?



It seems like the computer has been an old work computer and that there is an administrator account.



By locked I mean that the computer has an admin, and when I try to install linux from a bootable cd it does not start from that cd, saying I don't have the rights.










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  • 2




    Please clarify what you mean by “locked”. Are you, perhaps, referring to a firmware password?
    – Daniel B
    Jun 24 '14 at 15:23










  • Worst case scenario, you could probably replace the hard drive and BIOS. This would cost some money, but hopefully less than a new computer.
    – Kevin
    Jun 24 '14 at 16:35















up vote
0
down vote

favorite












I was at a flea market the other day and bought a computer. However, the computer is locked and I can't login to it. Is there a way to format the computer and install Linux on it?



It seems like the computer has been an old work computer and that there is an administrator account.



By locked I mean that the computer has an admin, and when I try to install linux from a bootable cd it does not start from that cd, saying I don't have the rights.










share|improve this question




















  • 2




    Please clarify what you mean by “locked”. Are you, perhaps, referring to a firmware password?
    – Daniel B
    Jun 24 '14 at 15:23










  • Worst case scenario, you could probably replace the hard drive and BIOS. This would cost some money, but hopefully less than a new computer.
    – Kevin
    Jun 24 '14 at 16:35













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I was at a flea market the other day and bought a computer. However, the computer is locked and I can't login to it. Is there a way to format the computer and install Linux on it?



It seems like the computer has been an old work computer and that there is an administrator account.



By locked I mean that the computer has an admin, and when I try to install linux from a bootable cd it does not start from that cd, saying I don't have the rights.










share|improve this question















I was at a flea market the other day and bought a computer. However, the computer is locked and I can't login to it. Is there a way to format the computer and install Linux on it?



It seems like the computer has been an old work computer and that there is an administrator account.



By locked I mean that the computer has an admin, and when I try to install linux from a bootable cd it does not start from that cd, saying I don't have the rights.







formatting format computer-architecture






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edited Jun 24 '14 at 15:28

























asked Jun 24 '14 at 15:22









Arash Saidi

110117




110117








  • 2




    Please clarify what you mean by “locked”. Are you, perhaps, referring to a firmware password?
    – Daniel B
    Jun 24 '14 at 15:23










  • Worst case scenario, you could probably replace the hard drive and BIOS. This would cost some money, but hopefully less than a new computer.
    – Kevin
    Jun 24 '14 at 16:35














  • 2




    Please clarify what you mean by “locked”. Are you, perhaps, referring to a firmware password?
    – Daniel B
    Jun 24 '14 at 15:23










  • Worst case scenario, you could probably replace the hard drive and BIOS. This would cost some money, but hopefully less than a new computer.
    – Kevin
    Jun 24 '14 at 16:35








2




2




Please clarify what you mean by “locked”. Are you, perhaps, referring to a firmware password?
– Daniel B
Jun 24 '14 at 15:23




Please clarify what you mean by “locked”. Are you, perhaps, referring to a firmware password?
– Daniel B
Jun 24 '14 at 15:23












Worst case scenario, you could probably replace the hard drive and BIOS. This would cost some money, but hopefully less than a new computer.
– Kevin
Jun 24 '14 at 16:35




Worst case scenario, you could probably replace the hard drive and BIOS. This would cost some money, but hopefully less than a new computer.
– Kevin
Jun 24 '14 at 16:35










4 Answers
4






active

oldest

votes

















up vote
2
down vote



accepted











It seems like the computer has been an old work computer and that there is an administrator account.




"BIOS" passwords



Some computers intended for business use have an optional boot password that can be set in the BIOS.



You may be able to reset this by removing and replacing the battery on the motherboard. If in doubt obtain a user-manual for the specific model of computer or for the motherboard.



However this sort of hardware/firmware password would be requested by the computer prior to any indication of Windows booting. It isn't clear from your question if this is the case.



Note: The term BIOS is used loosely here.



UEFI Secure Boot



You may need to disable Secure Boot. or install a Linux distro, such as Ubuntu, which supports it.



Microsoft Windows Administrator passwords



Normally, Windows Administrator accounts should not prevent you booting from a device like the DVD-ROM drive or a bootable USB stick.






share|improve this answer




























    up vote
    0
    down vote













    Simply put a Linux LiveCD (either USB or CD/DVD) in the PC and reboot. Start the installation and you'll be asked if you want to format the pc.
    If you have no way of logging in, you will probably have to do a hard-reset (switch the power off/on), but otherwise, you don't need any user rights in Windows to reinstall a computer. This works for Windows, Linux or any other OS.






    share|improve this answer




























      up vote
      0
      down vote













      Well actualy to install linux you will format from low level



      Just download a Live CD and will guide you to reach your target.



      Now. if your BIOS is locked or something will be more complicated, try first by removing its batery.



      To format windows partition you will need shutdown windows normaly. sometimes windows will lock your hdd






      share|improve this answer




























        up vote
        0
        down vote













        You don't need to format Windows to gain access to the machine. There's a bug in Windows that allow you to easily do it



        If you're stuck on the BIOS, do the step 1. If you're not, go to 2.



        1 - Remove the CMOS battery, wait about 20 seconds and put it again. It will restore the BIOS settings to default.



        2 - Boot up your pc with any Linux distro that allow you to 'test' it without installing (ubuntu 12.10, for example) and go to this option.



        3 - Access the hard drive and go to C:WindowsSystem32. Make a copy of cmd.exe file. Then, replace the copy's name with: sethc.exe and overwrite the original file.



        4 - Now, boot normally using the HDD. When you get to the Windows login screen, press Shift 5 times. It will 'call' the sethc file and you'll see the command prompt.



        5 - Type:



        control userpasswords2 (Win XP)



        netplwiz (Win 7, 8, 8.1...)



        At this point, you can switch the administrator password. Or, if you want, type explorer.exe and be happy!






        share|improve this answer























        • This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
          – gronostaj
          Jun 24 '14 at 17:36











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        4 Answers
        4






        active

        oldest

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        4 Answers
        4






        active

        oldest

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        active

        oldest

        votes








        up vote
        2
        down vote



        accepted











        It seems like the computer has been an old work computer and that there is an administrator account.




        "BIOS" passwords



        Some computers intended for business use have an optional boot password that can be set in the BIOS.



        You may be able to reset this by removing and replacing the battery on the motherboard. If in doubt obtain a user-manual for the specific model of computer or for the motherboard.



        However this sort of hardware/firmware password would be requested by the computer prior to any indication of Windows booting. It isn't clear from your question if this is the case.



        Note: The term BIOS is used loosely here.



        UEFI Secure Boot



        You may need to disable Secure Boot. or install a Linux distro, such as Ubuntu, which supports it.



        Microsoft Windows Administrator passwords



        Normally, Windows Administrator accounts should not prevent you booting from a device like the DVD-ROM drive or a bootable USB stick.






        share|improve this answer

























          up vote
          2
          down vote



          accepted











          It seems like the computer has been an old work computer and that there is an administrator account.




          "BIOS" passwords



          Some computers intended for business use have an optional boot password that can be set in the BIOS.



          You may be able to reset this by removing and replacing the battery on the motherboard. If in doubt obtain a user-manual for the specific model of computer or for the motherboard.



          However this sort of hardware/firmware password would be requested by the computer prior to any indication of Windows booting. It isn't clear from your question if this is the case.



          Note: The term BIOS is used loosely here.



          UEFI Secure Boot



          You may need to disable Secure Boot. or install a Linux distro, such as Ubuntu, which supports it.



          Microsoft Windows Administrator passwords



          Normally, Windows Administrator accounts should not prevent you booting from a device like the DVD-ROM drive or a bootable USB stick.






          share|improve this answer























            up vote
            2
            down vote



            accepted







            up vote
            2
            down vote



            accepted







            It seems like the computer has been an old work computer and that there is an administrator account.




            "BIOS" passwords



            Some computers intended for business use have an optional boot password that can be set in the BIOS.



            You may be able to reset this by removing and replacing the battery on the motherboard. If in doubt obtain a user-manual for the specific model of computer or for the motherboard.



            However this sort of hardware/firmware password would be requested by the computer prior to any indication of Windows booting. It isn't clear from your question if this is the case.



            Note: The term BIOS is used loosely here.



            UEFI Secure Boot



            You may need to disable Secure Boot. or install a Linux distro, such as Ubuntu, which supports it.



            Microsoft Windows Administrator passwords



            Normally, Windows Administrator accounts should not prevent you booting from a device like the DVD-ROM drive or a bootable USB stick.






            share|improve this answer













            It seems like the computer has been an old work computer and that there is an administrator account.




            "BIOS" passwords



            Some computers intended for business use have an optional boot password that can be set in the BIOS.



            You may be able to reset this by removing and replacing the battery on the motherboard. If in doubt obtain a user-manual for the specific model of computer or for the motherboard.



            However this sort of hardware/firmware password would be requested by the computer prior to any indication of Windows booting. It isn't clear from your question if this is the case.



            Note: The term BIOS is used loosely here.



            UEFI Secure Boot



            You may need to disable Secure Boot. or install a Linux distro, such as Ubuntu, which supports it.



            Microsoft Windows Administrator passwords



            Normally, Windows Administrator accounts should not prevent you booting from a device like the DVD-ROM drive or a bootable USB stick.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Jun 24 '14 at 15:51









            RedGrittyBrick

            66.4k12104160




            66.4k12104160
























                up vote
                0
                down vote













                Simply put a Linux LiveCD (either USB or CD/DVD) in the PC and reboot. Start the installation and you'll be asked if you want to format the pc.
                If you have no way of logging in, you will probably have to do a hard-reset (switch the power off/on), but otherwise, you don't need any user rights in Windows to reinstall a computer. This works for Windows, Linux or any other OS.






                share|improve this answer

























                  up vote
                  0
                  down vote













                  Simply put a Linux LiveCD (either USB or CD/DVD) in the PC and reboot. Start the installation and you'll be asked if you want to format the pc.
                  If you have no way of logging in, you will probably have to do a hard-reset (switch the power off/on), but otherwise, you don't need any user rights in Windows to reinstall a computer. This works for Windows, Linux or any other OS.






                  share|improve this answer























                    up vote
                    0
                    down vote










                    up vote
                    0
                    down vote









                    Simply put a Linux LiveCD (either USB or CD/DVD) in the PC and reboot. Start the installation and you'll be asked if you want to format the pc.
                    If you have no way of logging in, you will probably have to do a hard-reset (switch the power off/on), but otherwise, you don't need any user rights in Windows to reinstall a computer. This works for Windows, Linux or any other OS.






                    share|improve this answer












                    Simply put a Linux LiveCD (either USB or CD/DVD) in the PC and reboot. Start the installation and you'll be asked if you want to format the pc.
                    If you have no way of logging in, you will probably have to do a hard-reset (switch the power off/on), but otherwise, you don't need any user rights in Windows to reinstall a computer. This works for Windows, Linux or any other OS.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Jun 24 '14 at 15:24









                    Jakke

                    795614




                    795614






















                        up vote
                        0
                        down vote













                        Well actualy to install linux you will format from low level



                        Just download a Live CD and will guide you to reach your target.



                        Now. if your BIOS is locked or something will be more complicated, try first by removing its batery.



                        To format windows partition you will need shutdown windows normaly. sometimes windows will lock your hdd






                        share|improve this answer

























                          up vote
                          0
                          down vote













                          Well actualy to install linux you will format from low level



                          Just download a Live CD and will guide you to reach your target.



                          Now. if your BIOS is locked or something will be more complicated, try first by removing its batery.



                          To format windows partition you will need shutdown windows normaly. sometimes windows will lock your hdd






                          share|improve this answer























                            up vote
                            0
                            down vote










                            up vote
                            0
                            down vote









                            Well actualy to install linux you will format from low level



                            Just download a Live CD and will guide you to reach your target.



                            Now. if your BIOS is locked or something will be more complicated, try first by removing its batery.



                            To format windows partition you will need shutdown windows normaly. sometimes windows will lock your hdd






                            share|improve this answer












                            Well actualy to install linux you will format from low level



                            Just download a Live CD and will guide you to reach your target.



                            Now. if your BIOS is locked or something will be more complicated, try first by removing its batery.



                            To format windows partition you will need shutdown windows normaly. sometimes windows will lock your hdd







                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered Jun 24 '14 at 15:26









                            Quijote Shin

                            1975




                            1975






















                                up vote
                                0
                                down vote













                                You don't need to format Windows to gain access to the machine. There's a bug in Windows that allow you to easily do it



                                If you're stuck on the BIOS, do the step 1. If you're not, go to 2.



                                1 - Remove the CMOS battery, wait about 20 seconds and put it again. It will restore the BIOS settings to default.



                                2 - Boot up your pc with any Linux distro that allow you to 'test' it without installing (ubuntu 12.10, for example) and go to this option.



                                3 - Access the hard drive and go to C:WindowsSystem32. Make a copy of cmd.exe file. Then, replace the copy's name with: sethc.exe and overwrite the original file.



                                4 - Now, boot normally using the HDD. When you get to the Windows login screen, press Shift 5 times. It will 'call' the sethc file and you'll see the command prompt.



                                5 - Type:



                                control userpasswords2 (Win XP)



                                netplwiz (Win 7, 8, 8.1...)



                                At this point, you can switch the administrator password. Or, if you want, type explorer.exe and be happy!






                                share|improve this answer























                                • This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
                                  – gronostaj
                                  Jun 24 '14 at 17:36















                                up vote
                                0
                                down vote













                                You don't need to format Windows to gain access to the machine. There's a bug in Windows that allow you to easily do it



                                If you're stuck on the BIOS, do the step 1. If you're not, go to 2.



                                1 - Remove the CMOS battery, wait about 20 seconds and put it again. It will restore the BIOS settings to default.



                                2 - Boot up your pc with any Linux distro that allow you to 'test' it without installing (ubuntu 12.10, for example) and go to this option.



                                3 - Access the hard drive and go to C:WindowsSystem32. Make a copy of cmd.exe file. Then, replace the copy's name with: sethc.exe and overwrite the original file.



                                4 - Now, boot normally using the HDD. When you get to the Windows login screen, press Shift 5 times. It will 'call' the sethc file and you'll see the command prompt.



                                5 - Type:



                                control userpasswords2 (Win XP)



                                netplwiz (Win 7, 8, 8.1...)



                                At this point, you can switch the administrator password. Or, if you want, type explorer.exe and be happy!






                                share|improve this answer























                                • This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
                                  – gronostaj
                                  Jun 24 '14 at 17:36













                                up vote
                                0
                                down vote










                                up vote
                                0
                                down vote









                                You don't need to format Windows to gain access to the machine. There's a bug in Windows that allow you to easily do it



                                If you're stuck on the BIOS, do the step 1. If you're not, go to 2.



                                1 - Remove the CMOS battery, wait about 20 seconds and put it again. It will restore the BIOS settings to default.



                                2 - Boot up your pc with any Linux distro that allow you to 'test' it without installing (ubuntu 12.10, for example) and go to this option.



                                3 - Access the hard drive and go to C:WindowsSystem32. Make a copy of cmd.exe file. Then, replace the copy's name with: sethc.exe and overwrite the original file.



                                4 - Now, boot normally using the HDD. When you get to the Windows login screen, press Shift 5 times. It will 'call' the sethc file and you'll see the command prompt.



                                5 - Type:



                                control userpasswords2 (Win XP)



                                netplwiz (Win 7, 8, 8.1...)



                                At this point, you can switch the administrator password. Or, if you want, type explorer.exe and be happy!






                                share|improve this answer














                                You don't need to format Windows to gain access to the machine. There's a bug in Windows that allow you to easily do it



                                If you're stuck on the BIOS, do the step 1. If you're not, go to 2.



                                1 - Remove the CMOS battery, wait about 20 seconds and put it again. It will restore the BIOS settings to default.



                                2 - Boot up your pc with any Linux distro that allow you to 'test' it without installing (ubuntu 12.10, for example) and go to this option.



                                3 - Access the hard drive and go to C:WindowsSystem32. Make a copy of cmd.exe file. Then, replace the copy's name with: sethc.exe and overwrite the original file.



                                4 - Now, boot normally using the HDD. When you get to the Windows login screen, press Shift 5 times. It will 'call' the sethc file and you'll see the command prompt.



                                5 - Type:



                                control userpasswords2 (Win XP)



                                netplwiz (Win 7, 8, 8.1...)



                                At this point, you can switch the administrator password. Or, if you want, type explorer.exe and be happy!







                                share|improve this answer














                                share|improve this answer



                                share|improve this answer








                                edited Jun 24 '14 at 17:24

























                                answered Jun 24 '14 at 17:17









                                Victor Alencar Santos

                                13318




                                13318












                                • This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
                                  – gronostaj
                                  Jun 24 '14 at 17:36


















                                • This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
                                  – gronostaj
                                  Jun 24 '14 at 17:36
















                                This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
                                – gronostaj
                                Jun 24 '14 at 17:36




                                This is not a bug. It's you taking action to achieve that effect. Bugs are by definition unintentional and unwanted. Your instructions intentionally introduce a wanted security flaw. Btw, OP probably means BIOS password, because if he could boot Linux he wouldn't have any problems installing it.
                                – gronostaj
                                Jun 24 '14 at 17:36


















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