A problem has been detected and windows has been shut down to prevent damege to your computer. If this is first time you've seen this stop error screen, restart your computer. if this screen appers again, follow these steps: check for viruses on your conputer. Remove any installed hard drive controllers. Check your hard drive to make sure it is properly configured and terminated. Run CHKDSK /F to check for hard drive corruption, and than restrat your computer.