by David Hakala

When you create a user account under Windows, the operating system sets up a number of different folders to contain data specific to that user. These folders are placed on the same drive with the Windows operating systems files by default. There are some good reasons to change the location of these user files to a drive other than the one which Windows resides.

First, it makes backup operations faster and more efficient. User data changes very frequently, while the operating system changes seldom. If you make backups daily, as you should, then your backup program must a) work to sort changed files from unchanged files before backing up only the changed files, or b) back up unchanged files unnecessarily. Either way, backups take longer and consume more system resources while they are running, slowing down other things you may be doing.
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