Vhd file not getting released during log off from avd

The issue you're experiencing with Virtual Hard Disk (VHD) files not being released can be caused by various factors, and it's not typically related to your Antivirus (AV) software. Here are some recommendations and steps to troubleshoot and prevent this problem:

Check for Active Sessions: Ensure that there are no active sessions or processes that are still using the VHD files. You can use tools like Task Manager or Process Explorer to identify and terminate any lingering processes related to the VHD.

Properly Eject VHD: Whenever a user logs off or finishes using a VHD, they should properly eject it or ensure that all applications accessing it are closed. This can help release the file.

Automate Cleanup: Consider implementing scripts or automation to clean up unused VHD files periodically. This can be done using PowerShell or batch scripts to release or delete VHDs that are no longer in use.

File Locking Investigation: To find out why a VHD is not being released, you can use tools like "Process Explorer" or "Handle" (by Sysinternals) to check which process or application is locking the VHD file. This can help identify the culprit and take appropriate action.

File System Permissions: Ensure that the users have the necessary permissions to access and modify VHD files. Incorrect permissions can sometimes lead to issues with file release.

Use Shared Storage: If possible, consider using shared storage solutions or network-attached storage (NAS) to centralize VHD files. This can help in managing access and prevent file locking issues.

Regular Updates: Keep your virtualization software up to date. Updates often include bug fixes and improvements that can address issues related to file management.

Antivirus Software: While AV software typically doesn't cause such issues, it's a good practice to ensure that your AV software is not overly aggressive in scanning VHD files. You can configure exclusions within your AV software to skip scanning VHD files if needed.

Monitor and Log: Implement monitoring and logging to keep track of VHD file usage and any issues related to file locking. This can help you identify patterns and potential solutions.

Documentation and Training: Ensure that users are educated about proper VHD usage and log-off procedures. Providing clear documentation on best practices can help prevent these issues.

By following these recommendations and conducting a thorough investigation when issues arise, you can mitigate problems related to VHD file locking and ensure smoother virtualization operations.