Error 0x8007007B — DNS name does not exist

Error 0x8007007B: DNS name does not exist

This error occurs in: Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022.

Cause

The KMS client cannot find the KMS server SRV record in DNS. This often happens after a network change, in home environments (where there is no KMS server) or when the DNS record is outdated.

Symptoms

• During activation, the message appears: "DNS name does not exist"
• Error code: 0x8007007B
• English version: "DNS name does not exist"

Step-by-step solution

If you don't have a KMS server, switch to a MAK key. Manually specify the KMS server: slmgr.vbs /skms <server_name:port>. In a company network, contact your IT administrator.

Solution for Windows Server

1. Open PowerShell as administrator
2. Enter the key:

slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

1. Activate:

slmgr /ato

1. Check the status:

slmgr /xpr

Verification

After completing the steps, check if the activation was successful:

• Windows: Settings → System → Activation → should be "Windows is activated"
• Or: slmgr /xpr in the command line

Still not working?

If the above steps did not help:

1. Check the date and time — they must be correct (an incorrect date can block activation)
2. Temporarily disable antivirus and try again
3. Check your internet connection — online activation requires a connection to Microsoft servers
4. Contact us:
   • Email: [email protected]
   • Phone: 00 800 121 1654 (toll-free)
   • Help center: pomoc.kluczesoft.pl