Hey, so I have a Windows XP desktop. This fake antivirus called AV Guard Online popped up on my computer today. I was looking at a website, did not download anything, and this program became installed on my computer. I looked at where the desktop icon directed to, which was C:\WINDOWS\system32\cKK88gRRZ9YX.exe. I deleted this file and the fake program has not popped up. I have McAfee Security Center installed on my computer, however as soon as this fake antivirus program popped up, it turned off real time scanning. Every time I turn it on, it turns back off a few seconds later. Any time I try to do a full scan it says "An unexpected problem occurred with your scan. I tried installing Malwarebytes' Anti-Malware but it wanted me to restart. I didn't want to restart the computer because I am afraid it will get more messed up. Instead, I tried to scan right away. It began to work, then it unexpectedly shut. Now, when I try to open it, it says "windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item. " I would greatly appreciate any help. I have not backed up this computer, and there's lots of personal stuff (family pics, etc.) that would really suck to lose. Thank you in advance.