Hi,can any body advise me please? I previously downloaded the free version of AVG. A little while later my PC crashed, it was sent for repair and taken back to basics. I have now gone to download AVG again and a message comes up saying "downloading this file can corrupt your PC.do you want to go ahead'. What should I do, and was this maybe the cause of it crashing before? Advice please as I need anti virus protection. Thanks.