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Problem
In rare instances, installing StorageCraft® ShadowProtect® SPX 6.7.x on a Windows Server 2012 or 2016 based system system may cause an  INACCESSIBLE_BOOT_DEVICE blue screen error code pointing to stcvsm.sys upon reboot.

User-added image This article is only relevant to SPX 6.7.x installations; disregard if attempting to troubleshoot 6.8.0.

If the goal is to proactively patch the driver prior to rebooting the machine, proceed to Method 1.
If the machine encountered the BSOD and will not boot, proceed to Method 2.
Cause
A disk starts in offline mode. Eventually it will go online, then mount the file system. There are cases when the file system starts to mount the disk but the disk is not online yet.  If this occurs, the blue screen error code will appear.   
Resolution
There are four methods to bypass the blue screen error after it has been encountered. 

Method 1 - Proactively patching the snapshot driver:
Either resolution can be used prior to attempting to install 6.7.x on the system.

Resolution 1:
Download the patched driver, which is version 2.2.73.0.36. After the patched driver has been received from support then:
  1. Download the patched driver: MSFT_Signed_stcvsm-2.2.73.0.36.zip
  2. Install SPX 6.7.x.
  3. Do not reboot.
  4. Rename %windir%\system32\drivers\stcvsm.sys to %windir%\system32\drivers\stcvsm-rtm.sys.
  5. Copy the 2.2.73 driver to %windir%\system32\drivers.  Be sure to select the correct version for the operating system in question, either x64 or x86.
  6. Reboot the machine.
Resolution 2: 

Method 2 - Patch the driver within the Recovery Environment:
Download the patched driver, which is version 2.2.73.0.36. After the patched driver has been received from support then:
  1. Download the patched driver: MSFT_Signed_stcvsm-2.2.73.0.36.zip
  2. Boot to the StorageCraft® Recovery Environment (either the Windows or Crossplatform version will work). Alternatively, if the volume is a VHD/VHDX, it can be mounted and explored through Hyper-V.
  3. Identify the OS volume within the Recovery Environment (it might not default to C:).
  4. Copy the 2.2.73 driver to %windir%\system32\drivers on the OS volume. Be sure to select the correct version for the operating system in question, either x64 or x86.
  5. Reboot the machine.
  6. If the issue persists, move to the next method.

Method 3 - Edit the registry to remove the driver:
  1. Boot to the Recovery Environment for Windows.
  2. Open Tools > Command Prompt
  3. Type the following command, substituting the correct letter for the system volume as it may be different in the Recovery Environment, and press Enter:
reg load HKLM\SYSTEM_PROD C:\Windows\System32\Config\SYSTEM
  1. Type in regedit and press Enter
  2. In the registry, navigate to:
HKLM\SYSTEM_PROD\ControlSet001\Control\Class
  1. Search for stcvsm until you find the key for UpperFilter that contains the string stcvsm.
  2. Edit the key and ONLY remove stcvsm, retaining the rest of the text.
  3. Repeat steps 5 through 7 under ControlSet002.
  4. Close the Registry Editor.
  5. Run the following in the command prompt:
reg unload HKLM\SYSTEM_PROD
  1. Exit and reboot.