my pc failed the windows validation test . The effects such as my desktop turned black and a popup appears permanently to resolve. But i want to know that is der any harm if i dont resolve, i suppose der is a specific time under wich i have to resolve otherwise? can u please suggest me what to do now and what r d harms?

If you have a legal copy, send a copy of the invoice and the key you used during the installation to Microsoft, and claim. Usually, They will verify and contact you to give you another, valid, key.

If your copy is not a legal one ... the worst is that updates and patches are not applied, so exposing you to infections or missfunctinos or exploits. In this case, better buy a legal copy.

Hope this helps

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