Restore the system/boot drive letter

How to restore the system/boot drive letterSometimes when you change the configuration of your hard disks, Windows may get confused and mix up your drive letters. If the drive letter for your system/boot drive (where Windows is installed) gets changed, you may not be able to boot into the operating system when you restart. To restore the old drive letter(s), you can follow the procedure in KB article 223188, which involves editing the registry. As always, be sure to back up the registry before making changes to it. Click Here