Downgrading from SP6 to SP5

It is not a good situation to downgrade any software. If SP6 was not uninstalled correctly, the registry is still reporting that SP6 is on the hard drive. The folder or files may, or may not be there. I would suggest that you reinstall SP6. Each upgrade version not only adds new programs, it also corrects any bugs or problems with the older version.

Good luck and have a great day.

Don Thibodaux, Independent Computer Technology Consultant.

I seem to recall that SP6 isn't noted for a clean uninstall.

I'd reinstall NT, choosing "Repair existing..." then install SP3 followed by SP5.

There are some things, voice-control software, CD-W, etc. that don't work correctly if SP5 is installed without SP3.

Not sure about this but when I was pulling SP4, SP5 and SP6 (a), I remember reading a note that you shouldn't install SP6. I also think I saw some comments some where (don't remember where) that SP6 shouldn't be used, if you did, apply SP6a, that may correct whatever problems SP6 is giving you.

If you have an application that won't work with > SP5, save data and whatever files, scratch the system, reload from a backup, replace data files. Might have to buy/borrow another disk to be able todo that (Drive Image, Ghost, etc.). You can use the existing system to restore a backup (don't restore registry if you do that, I whacked my system really good when I did that) then swap drives. I would agree with above - it is very rare (and always dangerous) to revert to a previous upgrade. That is why there are warnings about having a 'good' backup before you upgrade. Lo