Windows & BSOD · medium

How to fix Windows activation error 0x8007007B

Windows & BSOD troubleshooting guide

What this error means

The filename, directory name, or volume label syntax is incorrect during activation. Reports of Windows activation error 0x8007007B usually describe a sudden crash, brief unresponsiveness, or a stop-code screen appearing out of nowhere. Typical causes include invalid KMS server and DNS resolution for KMS failed.

Updated

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 2 complete
01Change product key
  1. Change product key
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
02Connect to corporate network for KMS
  1. Connect to corporate network for KMS
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Invalid KMS server
  • DNS resolution for KMS failed