Can someone explain what the Last Good & Last Good Temp folders in C:\WINNT are used for? It appears that they are leftovers after using Windows Update from previous versions that the Windows Update updated (i.e. Microsoft VM build 3805 updated to build 3809). Can I delete the folders or the files within the folders as there are quite a few MB of files?

TIA
Tufenuf

Windows XP SP1 Home Edition.