Please help. RSAT won't install on Windows 8.1 Pro. Every time I try, I get the same error - "The system cannot find the file specified.". I really don't want to have to refresh the PC to get it working! I've installed the update successfully on a fresh win 8.1 enterprise install on a Hyper-V VM.

I am in uk, so have installed the en-US language pack first. I did have a windows component store corruption but I've managed to fix that.

event log says:

Windows update "Update for Windows (KB2693643)" could not be installed because of error 2147942402 "The system cannot find the file specified." (Command line: ""C:\Windows\system32\wusa.exe" "C:\RSAT Windows8.1-KB2693643-x64.msu" ")

CBS log (C:\Windows\Logs\CBS\CBS.log): http://1drv.ms/19CAv14

• Edited by davewilliams000 Thursday, March 19, 2015 3:17 PM

As Roger Lu reported, the log indicates that there is corruption in the update files that you downloaded. The log actually reports file not found, so you may also want to check permissions on the extracted files in C:\Windows\SoftwareDistribution\Download\76ecaa86ec6712300c2d71cbcdad378c\. You can also re-try downloading the files to see if your original download was just corrupt.