MS Project 2010 - Access Denied Error 70

If your users are getting error similar to the following:

... try doing this:

1. Exit MS Project
2. Clear/remove all temp files from c:\windows\temp
3. Go to the properties for c:\windows\temp. Uncheck the "Read-Only" checkbox and click apply.
4. Clear/remove all temp files from C:\Users\USERNAME\AppData\Local\Temp
5. Go to the properties for C:\Users\USERNAME\AppData\Local\Temp. Uncheck the "Read-Only" checkbox and click apply.
6. Open MS Project
7. Clear Cache
8. Archive again