Tuesday, August 17, 2010

Recover Lost Windows System File

A virus scanner removed the MS Windows rundll32.exe file. The system still booted and would run, with many annoyances.

How to replace MS Windows \WINDOWS\system32\rundll32.exe

Error message identifying missing file:

File is missing:

Open a command prompt and run System File Checker.
Start Button --> Run --> cmd
At command prompt type: sfc /scannow

With the installation CD in the CD drive, expand the file from CD to the MS Windows installation.

File rundll32.exe has been restored, with a current time stamp.

While not necessary, set the file attributes to read only.

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