I have a system image folder (WindowsImageBackup) of windows 8.1 on an external hdd. The size of the folder and sub folders is a total of 42GB. I tried to copy this folder to another external hdd that has only one partition, with 45GB free. When I try to copy the image folder, I get a message saying that there is not enough space on the target drive. It says I need an additional 39GB on the target drive to copy these files. So, the error message is telling me that I need 81GB of free space on the target drive to copy 42GB of files to it. The message correctly states the free space available on the target drive is 45GB. Why would the target drive need nearly twice the free space of the files being copied to it?
Can't copy system image - Not enough space
- Thread starter pxhopp
- Start date
Solution
basroil
Glorious
- Oct 19, 2013
- 8,698
- 1
- 46,960
Are you sure it's actually 42gb and not 81gb for the actual file size? The on-disk size might be different than the "real" size. Best way to transfer is to just use 7zip to make an archive on the target drive, since the total size will then be almost the same as the "real" size. Throw in some compression and it could be substantially smaller!
In the Properties window, it shows the “size” and the “size on disk” as both being 42GB. Thanks for the suggestion about 7zip. I have SyncBack, so I tried that and it worked fine; no space problem. I had also tried copying the image sub folders one at a time using Windows Explorer, and they fit doing it that way, but when I use Windows Explorer to copy the WindowsImageBackup folder and all subfolders at once, that's when it tells me I need an additional 39GB.
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