How to Repair Psapi.Dll

1. Download the psapi.dll file and note the location where you saved it (see Resources).
2. Right-click the 'Start' button and click 'Explore.'
3. Scroll through the folders using the left pane of the window. Navigate the C:\Windows\System32 path if you are using XP, Vista or Windows 7. Navigate the path C:\WINNT\System32 for Windows NT or 2000.
4. Drag the psapi.dll file that you downloaded to the 'System 32' folder. Replace the existing file with the new file.
5. Click 'Start' and type 'cmd' in the 'Start Search' or 'Run' field. Type 'regsvr32 psapi.dll' in the command prompt to register the file. Press 'Enter.'