cscript ospp.vbs /dhistoryall This shows recent KMS attempts. Also test the network port manually:
telnet YOUR_KMS_SERVER_NAME 1688 (If telnet fails, port 1688 is blocked – check Windows Firewall or corporate firewall rules.) cscript ospp.vbs /remhost 6. Switch to MAK activation (if you have a Multiple Activation Key) If your organization provides a MAK key instead:
cscript ospp.vbs /inpkey:YOUR-MAK-KEY-HERE cscript ospp.vbs /act Check DNS records for _vlmcs._tcp – KMS clients find servers via DNS. Run: 0xc004f074 office activation error
nslookup -type=SRV _vlmcs._tcp If nothing returns, your IT team needs to publish the KMS DNS record.
SOLVED: Office Activation Error 0xc004f074 – "Key Management Service (KMS) is unavailable" cscript ospp
cd C:\Program Files\Microsoft Office\Office16 (Use Office16 for 2016/2019/2021, Office14 for 2010, Office15 for 2013)
Let me know if any of these steps resolve it for you! 👇 Run: nslookup -type=SRV _vlmcs
cscript ospp.vbs /sethst:YOUR_KMS_SERVER_NAME cscript ospp.vbs /act Replace YOUR_KMS_SERVER_NAME with the actual hostname (e.g., kms.contoso.com ). Ask your IT team if unknown. From the same admin command prompt, run:
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