When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I am guessing you have internet explorer. Right click on it, then click on properties. I will bet you will see a strange address in there. Change this address to what you use to get on the net. That will stop what is going on. Then down load AVG and Spy bot.
Avg might have to be updated three times as the download is just basic. When it says no more updates are available, then run the scan. Spy bot should only need one update. On Spy bot make sure you imunize all your files. The square to the left will open it. and pull up the files. Then hit imunize on the top left hand side, and your good to go.
I've become of Kaspersky Anti-Virus for cleaning client's machines. They get a 30 day free trial, then, if they want to keep it clean, they have to get a subscription.
I rarely get call-backs from re-infections once they figure out how expensive it is to fix..
As pointed out, you need to boot into safe mode to do anything useful with most programs.
My son and my daughter both acquired viruses on my wife's pc, from there.
I used to think the same thing until my daughter started college and I bought her and my wife their own laptops. Now my wifes computer is the one that's always screwed up.
As of today, I don't think it's possible to get infected with a virus by watching a video on Youtube.
There may be videos that give instructions that, if followed, will render your computer infected. And E-mail containing links to supposed videos which are merely links to a site that infects the browsing computer. But youtube videos that infect are non-existant.