I am running a HP Compaq dc 5100. On downloading software to speed up my computer it became obvious that it was malware which I got rid of as quick as I could but not before it had disabled the system restore which I can't recover. At the same time on opening up my computer it sticks and windows installer tries to open 'Picture Gallery' and will only boot up if I use task manager to end that task. From then on all is ok.
Thank you Fruit Bat, I tried to restore as you suggested but directly I clicked okay the check box tick appeared again and came it said there was a problem. Is it safe to use restoreguard.com to do the trick
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