You're not butting in and are welcome.
I have some good news and some bad news.
Firsts I uninstalled Threatfire and Windows Defender.
did a restore point and then a system restore to that point worked fine, so thought I would go to a restore point earlier than the uninstall TF and WD, bad move it reinstalled W.Defender and Threatfire, WD uninstalled again fine, but Threatfire couldn't uninstall as bits were missing.It suggested to install a new copy, but tying to do this the installer detected Threatfire and wouldn't install. I have deleted in progfiles all that will delete some TF.dlls won't delete. during my doing this believe it or not Threatfire actually updated.
Oh dear!!!
Any ideas would be appreciated.