I have just purchased this pc about a week ago and I have been having trouble with it from day one!. I don't know much about pc repair nor do I have the time!. I purchased this same computer 5 mos. ago and had to replace it because it stopped loading security updates, even the mcafee didn't work right. The normal fixes didn't work on it. I needed an extra computer anyway so I purchased a new one just like it and as soon as it went through the start up and to the home page, I checked to see if it was up to date and it read that I had over 52 critical updates that needed to be installed and it had some that failed!. But it eventually loaded them all. I do a lot of business on ebay and I am having trouble getting pages to change(HTTP error 400). Sometimes when I start the pc, I can't sign in because the keyboard dosen't work and I have to restart!. I read these forums and found out a month ago how to run Adm. Com.Promt scans and every time I run one it tells me that it found corrupt files and that it has repaired them and tells me to reboot. I have done this over and over and even back to back and it keeps telling me the same without ever repairng anything!. I would like to know this new computer has corrupted files unless it came from the company that way?