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I thought that I might have a virus called backdoor.tidserv, but I don't. (It's a virus that redirects you to various webpages and is invisible to most antivirus programs -- or so I undersand).
Anyway, Symantec has a free test/removal tool. However, they casually mention that you need to disable system restore to use it.
I was a little nervous about that, so I started to do it -- just to see how it worked. It popped up a warning that said "Existing restore points will be deleted" - So I quit.
I've never had to use a restore on my personal stuff, but that was too much of a chance to take -- what if the 'fix' screwed me up big time?
Anyway, I didn't do it.
I think that there is a way to save restore points externally.
Does anyone know what it is?
Also, does anyone have experience with this tidserv? Sounds pretty nasty.
The reason it wants to delete the restore points is because if you have a virus, the virus will likely also be archived in your restore points. A restore point can't be edited, so if the virus is hidden in there as well, the removal tool won't be able to touch it and your machine will still be infected.
If you're worried, make an external back up of your hard drive or documents, or whatever it is you're worried about losing and then go ahead and delete the restore points. If something bad happens, you can always revert to your back up. If everything works with no issues after a few weeks, delete the back up so you don't save the virus and forget about it later.
External drives have gotten quite inexpensive of late.
I have two 1TB drives that I back up to.
Do a back up before doing a risky action.
If there is a problem you can reinstall the pre action condition.