I've been trying to recover files on my on-premises Hyper-V server using the MARS Agent, but I've run into issues where File Explorer hangs while it attempts to mount the drive. It sometimes takes over an hour just to get it to work. I suspect it might have something to do with Microsoft Defender's scanning. Can anyone break down what's happening behind the scenes?
2 Answers
It might also help to look through the Event Viewer on your server. You can find useful logs related to what's happening during the recovery process. If you need guidance, I recommend checking the System and Application logs for any warnings or errors.
When the MARS Agent tries to recover files, it creates a virtual volume that appears as a new drive to Windows. This means that any security filters like Microsoft Defender or third-party antivirus will start scanning it. If the recovery point has a lot of files, or if it's just a large backup, the initial process can bog down the system, making Explorer feel unresponsive. A common fix is to configure your antivirus to ignore the temporary mount path. Additionally, using a different machine with fewer security tools can help since the agent only needs network access, not the original server itself.
Thanks for the tip! I'll check if I can modify the AV settings.
Which specific sections should I focus on in the Event Viewer?