Why can I not delete MBR:\\.\PHYSICALDRIVE0 ( a blue screen virus or malware or whatever ) from my computer. I have run AVAST a million times, set my computer back to a better time, scanned till the cows have come home. Please help. Nanna749

Do an internet search for MBR:\\.\PHYSICALDRIVE0 and select a repair method. Example: https://encrypted.google.com/search?q=MBR%3A\\.\PHYSICALDRIVE0&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a And browse the results.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

nanna, My suggestion is that you download, install, and run a full scan using MalwareBytes. If thereafter, you still have the problem, then post in the MalwareBytes forum. My personal preventive measures are: Microsoft Security Essentials as a malware fighter/remover, Windows Firewall as a firewall. Under your case, then download and run immediately Microsoft's Malicious Software Removal tool. Using Windows Update and the other tools I've mentioned, then Microsoft will update the Malicious Software Removal Tool periodically and run same. You won't need to concern yourself with keeping this tool up-to-date. I also, about once every three months, download and run the latest version of MalwareBytes, however, MS has always done its job well. Another interesting tool for spotting unusual activity is AutoRuns from SysInternals. Now for some links: http://www.malwarebytes.org/ You be sure to use that address and none other for getting MalwareBytes. This program is the number one target of the evil-doers. http://www.microsoft.com/security_essentials/ for Microsoft Security Essentials. http://www.microsoft.com/security/pc-security/malware-removal.aspx for the Malicious Software Removal Tool. Incidentally, there's a good chance that the Malicious Software Removal Tool will solve your problem. http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx for AutoRuns.EXE This forum has gone crazy again and is stripping out carriage-returns. I apologize. I wish MS would use modern forum software. OK. I allowed aspnetcdn.com so maybe now this is readable.

Check where the directory MBR and file PHYSICL DRIVE0 stored.Go to the file.right click on the file and check the file attributes.The attribute could have been read only.Deselect the option.Try to delete the file now.