Yes you can delete them if you are certain you don't want to roll back. Once
you have manually deleted them you can open Add and Remove Programs and
delete the reference to them found there.
"roboz" <roboz@discussions.microsoft.com> wrote in message
news:5465C91F-8D1E-4852-847D-248ECF360FCF@microsoft.com...
> can the hidden folders on the c: drive with the names of
> $NtServicePackUnistall$ etc be deleted?