Windows 10 comparing size on disk of two folders











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I just copied very large folder from my portable drive to my laptop running win 10. For these two folders (in different locations) file explorer shows same size, but different size on disk. Everything else i.e. number of files and subfolder is the same. Can I be confident that I copied folder completely?










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    I just copied very large folder from my portable drive to my laptop running win 10. For these two folders (in different locations) file explorer shows same size, but different size on disk. Everything else i.e. number of files and subfolder is the same. Can I be confident that I copied folder completely?










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      up vote
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      up vote
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      down vote

      favorite











      I just copied very large folder from my portable drive to my laptop running win 10. For these two folders (in different locations) file explorer shows same size, but different size on disk. Everything else i.e. number of files and subfolder is the same. Can I be confident that I copied folder completely?










      share|improve this question













      I just copied very large folder from my portable drive to my laptop running win 10. For these two folders (in different locations) file explorer shows same size, but different size on disk. Everything else i.e. number of files and subfolder is the same. Can I be confident that I copied folder completely?







      windows-10 hard-drive






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      asked Nov 19 at 23:13









      user1700890

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          Yes you can be confident that you have copied the whole folder. If the size attribute of the folders are the same, because that is essentially the size of the contents.



          The size attribute is the actual byte count of the file(s). The size on disk attribute is the actual byte count that the file(s) was given by the operating system.



          The size on disk can be bigger than the actual file but if you use a drive compression it can also be smaller.



          Here's a good answer regarding the difference between the two if you are interested: What is the difference between size and size on disk?






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            Space taken by each file would be the multiple of allocation unit size. That means, there will be a standard space allotted for each file. Whether it is used completely or not the file is being saved to the allotted standard space.



            In short whether the file is large enough to fit in the space or not, that will be saved to that standard allotted space. So the file space would be lesser than the disk space (standard space). E.g: You are given a room even if you are not using the whole space of that particular room.






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              2 Answers
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              2 Answers
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              up vote
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              down vote



              accepted










              Yes you can be confident that you have copied the whole folder. If the size attribute of the folders are the same, because that is essentially the size of the contents.



              The size attribute is the actual byte count of the file(s). The size on disk attribute is the actual byte count that the file(s) was given by the operating system.



              The size on disk can be bigger than the actual file but if you use a drive compression it can also be smaller.



              Here's a good answer regarding the difference between the two if you are interested: What is the difference between size and size on disk?






              share|improve this answer



























                up vote
                1
                down vote



                accepted










                Yes you can be confident that you have copied the whole folder. If the size attribute of the folders are the same, because that is essentially the size of the contents.



                The size attribute is the actual byte count of the file(s). The size on disk attribute is the actual byte count that the file(s) was given by the operating system.



                The size on disk can be bigger than the actual file but if you use a drive compression it can also be smaller.



                Here's a good answer regarding the difference between the two if you are interested: What is the difference between size and size on disk?






                share|improve this answer

























                  up vote
                  1
                  down vote



                  accepted







                  up vote
                  1
                  down vote



                  accepted






                  Yes you can be confident that you have copied the whole folder. If the size attribute of the folders are the same, because that is essentially the size of the contents.



                  The size attribute is the actual byte count of the file(s). The size on disk attribute is the actual byte count that the file(s) was given by the operating system.



                  The size on disk can be bigger than the actual file but if you use a drive compression it can also be smaller.



                  Here's a good answer regarding the difference between the two if you are interested: What is the difference between size and size on disk?






                  share|improve this answer














                  Yes you can be confident that you have copied the whole folder. If the size attribute of the folders are the same, because that is essentially the size of the contents.



                  The size attribute is the actual byte count of the file(s). The size on disk attribute is the actual byte count that the file(s) was given by the operating system.



                  The size on disk can be bigger than the actual file but if you use a drive compression it can also be smaller.



                  Here's a good answer regarding the difference between the two if you are interested: What is the difference between size and size on disk?







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Nov 20 at 15:15

























                  answered Nov 20 at 8:24









                  RamonRobben

                  821415




                  821415
























                      up vote
                      1
                      down vote













                      Space taken by each file would be the multiple of allocation unit size. That means, there will be a standard space allotted for each file. Whether it is used completely or not the file is being saved to the allotted standard space.



                      In short whether the file is large enough to fit in the space or not, that will be saved to that standard allotted space. So the file space would be lesser than the disk space (standard space). E.g: You are given a room even if you are not using the whole space of that particular room.






                      share|improve this answer



























                        up vote
                        1
                        down vote













                        Space taken by each file would be the multiple of allocation unit size. That means, there will be a standard space allotted for each file. Whether it is used completely or not the file is being saved to the allotted standard space.



                        In short whether the file is large enough to fit in the space or not, that will be saved to that standard allotted space. So the file space would be lesser than the disk space (standard space). E.g: You are given a room even if you are not using the whole space of that particular room.






                        share|improve this answer

























                          up vote
                          1
                          down vote










                          up vote
                          1
                          down vote









                          Space taken by each file would be the multiple of allocation unit size. That means, there will be a standard space allotted for each file. Whether it is used completely or not the file is being saved to the allotted standard space.



                          In short whether the file is large enough to fit in the space or not, that will be saved to that standard allotted space. So the file space would be lesser than the disk space (standard space). E.g: You are given a room even if you are not using the whole space of that particular room.






                          share|improve this answer














                          Space taken by each file would be the multiple of allocation unit size. That means, there will be a standard space allotted for each file. Whether it is used completely or not the file is being saved to the allotted standard space.



                          In short whether the file is large enough to fit in the space or not, that will be saved to that standard allotted space. So the file space would be lesser than the disk space (standard space). E.g: You are given a room even if you are not using the whole space of that particular room.







                          share|improve this answer














                          share|improve this answer



                          share|improve this answer








                          edited Nov 20 at 11:08









                          RamonRobben

                          821415




                          821415










                          answered Nov 19 at 23:48









                          voxforem technologies

                          111




                          111






























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