How to Solve Stop: 0x0000007B Error in Windows

Causes : This error normally indicates that you have an inaccessible boot device, meaning that
               Windows cannot access your hard disk. The common causes for this type of error are a
                boot sector virus, bad or incompatible hardware, or missing hardware drivers or device
                drivers, data corruption.

Different possible Soln :  

a) Restart your computer, Remove or reconfigure the newly installed hard drive              controller or Start up with the Last Known Good Configuration or Use System
              Restore to undo recent changes.

b) Verify the Hardwares are properly installed.

            c) Verify that the Hard drives are properly configured with BIOS.

            d) Scan the computer for viruses and delete them as certain viruses infect the MBR
                (Master Boot Record) or Boot Sector of the Hard Drive.

            e) Update the drivers for the hard drive controller if the hard drive controller is outdated
                 version.
            f) Change SATA mode to IDE mode in BIOS or in compatibility mode or ACHI mode.

g) Run chkdsk on the hard drive which could repair if any corrupted in boot volume.

h) Run fixmbr command to create new MBR.

i) Perform test of hard drive and if  test give hard drive problem then replace with new
                hard drive.

j) Clear CMOS.

k) Update BIOS and can be download from this link http://support.microsoft.com/.

Note : This can be applied to Windows 7, Windows Vista, Windows XP, Windows 2000, and
            Windows NT.