Yes, it's quite possible that the issues with both Windows 7 Backup and Disk2vhd are related to problems with the Volume Shadow Copy Service (VSS). Here's how you can check the status of VSS, enable or disable it, and troubleshoot any issues in Windows 7:
1. Check the Volume Shadow Copy Service (VSS) Status
Via Services Manager:
Open the Services Manager:
Press Win + R to open the Run dialog box.
Type services.msc and press Enter.
Locate the Volume Shadow Copy service:
In the Services window, scroll down to find Volume Shadow Copy.
Check the Status:
The Status column should indicate whether the service is Running.
The Startup Type should be set to Manual (this is the default setting, which means it starts when needed).
Start the Service if It's Not Running:
If the service is not running, right-click on Volume Shadow Copy and select Start.
If you want to make sure it always starts automatically, you can right-click, select Properties, and set the Startup type to Automatic.
Via Command Prompt:
Open Command Prompt as Administrator:
Search for cmd in the Start menu, right-click on Command Prompt, and select Run as administrator.
Check the VSS Service Status:
Type the following command and press Enter:sc query vss
This will display the current status of the Volume Shadow Copy service.
Start the VSS Service:
If the service is not running, you can start it by typing:net start vss
2. Check and Manage VSS Storage (Shadow Copies)
If VSS is running but you're still having issues, it may be related to storage settings for shadow copies.
Check Shadow Copy Storage:
Open Command Prompt as Administrator.
Check VSS storage configuration:
Type the following command and press Enter:vssadmin list shadowstorage
This will display the allocated, used, and maximum size of the storage space used for VSS snapshots.
Adjust or Delete Existing Shadow Copies:
If there's insufficient space or other issues with shadow copies, you can adjust the storage size or delete old snapshots.
Resize the Shadow Storage:
Use the following command to resize the storage space:vssadmin resize shadowstorage /for=C: /on=C: /maxsize=XXGB
Replace C: with the appropriate drive letter and XXGB with the amount of space you want to allocate.
Delete Old Shadow Copies:
If needed, you can delete existing shadow copies to free up space:vssadmin delete shadows /for=C: /oldest
This command deletes the oldest shadow copy on the specified drive (replace C: with the correct drive letter).
3. Check VSS Writers
VSS writers are responsible for ensuring that data is correctly written to the shadow copies. If a VSS writer is failing, it can cause the backup process to fail.
List All VSS Writers:
In the Command Prompt (as administrator), type:vssadmin list writers
This will display a list of VSS writers and their current status. If any writers are listed with errors, this could be the source of the problem.
4. Restart VSS Service
Sometimes simply restarting the VSS service can resolve transient issues.
Restart the Service:
Go to the Services Manager (services.msc).
Right-click Volume Shadow Copy and select Restart.
5. Check Event Viewer for VSS Errors
If the above steps do not resolve the issue, check the Event Viewer for specific VSS errors.
Open Event Viewer:
Press Win + X and select Event Viewer.
Navigate to VSS Logs:
Go to Windows Logs > Application.
Look for entries related to VSS. Any errors or warnings here can provide more detailed information on what's going wrong.
By following these steps, you should be able to diagnose and potentially resolve the VSS issues that are preventing both Windows 7 Backup and Disk2vhd from working correctly.