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- Sat Jan 10, 2026 7:33 pm
- Forum: Your first forum
- Topic: I’m trying to upgrade my Windows 10 PC to Windows 11, which it says is compatibl?
- Replies: 11
- Views: 583
I’m trying to upgrade my Windows 10 PC to Windows 11, which it says is compatibl?
I’m trying to upgrade my Windows 10 PC to Windows 11, which it says is compatible. The upgrade itself goes through, but afterwards I get an activation error (0xC004C003). It says Windows isn’t activated, even though my Windows 10 was fully genuine and activated. I’ve tried the activation ...