If the folder is still in the Recycle Bin, locate it and restore it.
Then do a System Restore to a date before you installed Quickbooks the first time and see what happens. That should remove all the registry entries.
Run Disk Cleanup and Disk Defragmenter from System Tools to tidy everything back up, then before installing Quickbooks, use the registry editor and set the permissions for the HKEY_CLASSES_ROOT and HKEY_CURRENT_USER hives of the registry.
Once Quickbooks has installed, set the permissions for the Intuit Folder in BOTH the Program Files folder AND the folder located in C:\Windows.
I don't know that this is going to do the trick, but it will sure give you the best chance for a successful install.
Edited by wannabe1, 23 April 2006 - 12:17 AM.