Windows stuck in boot after WireGuard update (switch to WireGuardNT?)

Joshua Sjoding joshua.sjoding at
Wed Sep 22 19:36:52 UTC 2021

We've seen these symptoms (infinitely spinning dots during bootup) at
least twice in the past week, but hadn't thought to link the behavior
to WireGuard. We had a third case this morning, and I can confirm that
the steps outlined by Oliver got the machine back to a bootable
condition. Thank you Oliver!

Before disabling the devices in Device Manager, we tried disabling the
WireGuard Tunnel service instead, but it still failed to boot.

The laptop that failed today is a Lenovo ThinkBook 15 G2 ITL
(20VE006UUS) laptop running Windows 10 Pro 20H2.
The laptops that failed previously are Lenovo ThinkBook 14s Yoga
2-in-1 (20WE001DUS) laptops.

We collected the WireGuard logs today while still in Safe Mode via
wireguard.exe /dumplog. I'll send those directly to the WireGuard team
off-list. We'll grab the setupapi logs as well when we get a chance
later today.

While this might be an issue with WireGuard for Windows, it's also
possible that the fault lies elsewhere, like a recent Windows update
or some other driver update. Like Oliver, we have BitLocker enabled on
these devices.

Joshua Sjoding
SCJ Alliance
IT Specialist

On Wed, Sep 22, 2021 at 12:00 PM Jason A. Donenfeld <Jason at> wrote:
> Hi Oliver,
> Could you send the wireguard application log, as well as any other
> logs you find? Also \windows\inf\setupapi.*.log would help.
> Jason

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