Not really much you can do, sorry. You're just the latest tale of woe associated with registry cleaner programs. If system restore doesn't undo the damage, then you're looking at reinstalling affected programs, maybe even the OS.
Windows Live Mail and Windows Sidebar stopped working after installing Advanced system care Pro and running WINFIX. Son installed over the holidays and thought he was helping - but now Live mail and sidebar have both stopped working. Husband tried to fix it but it went from being able to receive email to not functioning at all now. He did a system restore to 12/16/12 last night. That was prior to ASC Pro 6.0 being installed, only the trial version was installed at that point and the sidebar and live mail were working but now neother of those are working - and potentially other software but haven't tested all items.
Vista Home Premium SP2
Intel core duo processor at 2.53 GHz
Any thoughts on how to cure this? Currently the only way to get email is through internet - had three accounts in windows live mail - all were working fine prior to dec 17.