Hey @Dale Walsh
I can understand the frustration, especially if the computers have been activated and working for years. The specific error “The activation server determined the specified product key has been blocked” points more toward an activation/product-key issue than a normal Windows Genuine notification.
Before reinstalling or making major changes, I’d check the activation status:
- Open Command Prompt as Administrator.
Run:
slmgr /dlv
and then:
slmgr /xpr
In the /dlv output, check the Description, License Status, and the last 5 characters of the installed product key. Don't post the full product key publicly.
If this is an older Windows 7 installation, also check whether the license is OEM, Retail, or Volume/KMS. A blocked key can happen for different reasons, including a key that has subsequently been blocked by Microsoft's activation service.
If the key is genuinely licensed and has been working for years, repeatedly entering the same key or running the activation troubleshooter usually won't resolve a server-side blocked-key condition. At that point, Microsoft Support/licensing would need to verify the key and activation history.
Since you specifically depend on Windows 7/XP Mode, I would also avoid upgrading, reinstalling, or deleting the existing installation until the licensing issue is understood. If the old environment contains important applications or files, make a backup first.
If you can post the Windows edition (for example Windows 7 Professional), License Status, and Description from slmgr /dlv, with the product key itself removed, that would give us much more information about what is actually being blocked.I can understand the frustration, especially if the computers have been activated and working for years. The specific error “The activation server determined the specified product key has been blocked” points more toward an activation/product-key issue than a normal Windows Genuine notification.
Before reinstalling or making major changes, I’d check the activation status:
Open Command Prompt as Administrator.
Run:
slmgr /dlv
and then:
slmgr /xpr
In the /dlv output, check the Description, License Status, and the last 5 characters of the installed product key. Don't post the full product key publicly.
If this is an older Windows 7 installation, also check whether the license is OEM, Retail, or Volume/KMS. A blocked key can happen for different reasons, including a key that has subsequently been blocked by Microsoft's activation service.
If the key is genuinely licensed and has been working for years, repeatedly entering the same key or running the activation troubleshooter usually won't resolve a server-side blocked-key condition. At that point, Microsoft Support/licensing would need to verify the key and activation history.
Since you specifically depend on Windows 7/XP Mode, I would also avoid upgrading, reinstalling, or deleting the existing installation until the licensing issue is understood. If the old environment contains important applications or files, make a backup first.
If you can post the Windows edition (for example Windows 7 Professional), License Status, and Description from slmgr /dlv, with the product key itself removed, that would give us much more information about what is actually being blocked.