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FileVersionInfo: n/a
File Size: 4400 byte(s) 4.304 KB
MD5 : fd4df96db5e4686272856315320ea5cf
SHA1: F76CD74F073BC57A56932C883F299CB35C97956E

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How to Install mssusr.sys
Repair Sys ProblemsFixing a corrupted or missing mssusr.sys error is an easy process with a few steps. Open the zip-file you downloaded.Extract the .sys file to a location on your computer. We recommend you to unzip the file to the directory of the program that is requesting the file.
If that doesn't work, you will have to extract the file to your system directory.
By default, this is C:/WINNT/system32/drivers (Windows NT/2000).
or C:/Windows/system32/drivers (Windows XP, Vista, 7).
Make sure overwrite any existing files (but make a backup copy of the original file)
That should be it. Although not necessary you can reboot your computer as well.