Buy a refurbished PC with confidence

How to activate Windows?

by Dariusz Dubis

Please locate your product key first (link: Where is my product key?)

COA sticker may contain the concealment panel which consists of a small clear label with removable silver scratch-off material that has been applied to conceal a portion of the 25-characters of the product key.  Please use a finger nail to gently scratch the silver surface off. Do not try pell off the small clear label.

- Select the Start button, then select Settings > Update & security > Activation
- Select Change product key, and then enter the 25-character product key.

If you still unable to activate you might have mistyped your product key. Try retyping it.

Windows product keys are limited to the following lists of valid and invalid product key characters;

Acceptable characters:
Numbers : 2, 3, 4, 6, 7, 8, 9
Letters : B, C, D, F, G, H, J, K, M, P, Q, R, T, V, W, X, Y

Unacceptable characters:
Numbers : 1, 5, 0
Letters : A, E, I, L, O, S, U, Z

Attempting to enter any unacceptable characters, during product key entry, may result in an error

If above suggestion did not help you may need to activate Windows by phone, type SLUI 04 in the search box on the taskbar, select SLUI 04, then follow the instructions on the screen to activate Windows.

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