Diskpart won't let me clean an external USB drive (Virtual Disk Service error)

Cassie123

Trying to clear a weird partition on my old laptop drive so I can use it as an external storage. Someone told me to use diskpart in cmd.

I did list disk, identified the external drive (Disk 1), typed select disk 1, and then clean. But it gave me this long error:

"Virtual Disk Service error: The operation is not allowed on a disk containing the current boot, system, pagefile, crashdump or hibernation volume."

Bro, I am NOT booting from this drive, it's literally plugged in via a USB adapter. My main OS is on my internal NVMe (Disk 0). Why is Windows blocking me and thinking this USB drive has active system files?

What commands or tools do I need to use to bypass this? Help appreciated.

Giamrsh

Cassie123

Let me see. As you failed with select disk 1, clean, you can try
select disk 1
offline disk
online disk
clean
Sometimes toggling offline/online resets Windows' attitude.
This maybe work.

qwe17087995

I've run into this exact same issue so many times with old laptop drives, it's incredibly annoying. Even though it's obviously plugged in via USB, Windows looks at the old partitions and panics. It's a hardcoded guardrail to stop people from accidentally nuking their C: drive, but it's dumb enough to block external drives too. Usually, this happens because Windows quietly mounted a pagefile or some background system process to that USB drive the moment you plugged it in.

Since you're already in diskpart, you can try forcing it by deleting the stubborn partitions one by one using an override command.

Try this real quick:

Run CMD as admin > diskpart > list disk > select disk 1 (double-check that number!)
Type list partition
select partition X (pick the annoying system/recovery one)
Run: delete partition override

That override tag is the secret sauce, it basically tells Windows to shut up and delete it anyway. Do that for the partitions, and then the main clean command should work.

If diskpart still throws that same Virtual Disk Service error even with the override command, it means Windows is actively using a pagefile on that drive. Go to Advanced System Settings > Performance > Virtual Memory, check if any paging file is assigned to Disk 1, set it to "No paging file", reboot, and try again. It'll work like a charm.