[sebek]

I took the PC from the seller, the seller said that Windows is “official”. But today a message about activation popped up. In the properties it says that the key is “invalid”. I don’t want to reset the system – I already configured everything there for myself. How to check and activate normally?

[dertave]

I had exactly the same story after buying a used computer. Everything looked like a license, but a few days later a message about activation appeared. I didn’t want to reinstall, because I had already configured everything for myself. I was saved by windows activator, which works without resetting the system. Now everything is stable, the main thing is to check the source.

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