Adobe Reader install failed “Error 1324.The path My Documents or the volume is invalid. Please enter it again.”

When installing Adobe Reader manually on an old computer which had changed domain servers and had an old profile I experienced this error: “Error 1324.The path My Documents or the volume is invalid. Please enter it again.” This told me the my documents folder was being redirected to an invalid location. I tried right clicking on my documents in the start menu but I was unable to change the path probably because of an old group policy. I figured I would need to change it in the registry.
The registry key for My Documents location is usually HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
But if it has been changed by group policy like in my case it is located here:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
The key is called personal in both locations.

The way I fixed the adobe reader install problem was to change the my documents location back to a local location such as the default location of: C:\Documents and Settings\username\My Documents. I also changed the location of my pictures, my music and my videos for good measure. I then downloaded the full installer from Adobe’s website saved it in the local my documents location and the install finished successfully.