2 Replies Latest reply on Jan 26, 2009 9:11 AM by SafeBoot

    Unmountable Boot Volume


      I am having the following problem with a machine.

      The machine in question was getting an error after Safeboot authentication "Operating System Not found"

      I took the following measures:

      1. Loaded SafeTech
      2. Emergency Boot
      3. Proceeded normal boot into Windows
      4. Synchronized with server to complete boot
      5. I am running build 5130, so I triggered an uninstall from the server
      6. Safeboot decrypted and uninstalled successfully and asked for a reboot
      7. I rebooted
      8. BSOD, "Unmountable_Boot_Volume"

      Any ideas why this happened or how I can avoid it in the future?

        • 1. RE: Unmountable Boot Volume
          Read the release notes for B5500. It talks about several problems related to BIOS features and problems with unpatched BIOS on certain machines (especially ones with SATA).
          • 2. RE: Unmountable Boot Volume
            the error usually means that the SafeBoot.sys driver is still in the registry, but the file is gone.

            most often I see this with people doing system restore activity - restoring from an uninstalled state to a point where SafeBoot was active.

            to fix, use the recovery console, and make a copy of serial.sys called safeboot.sys.