Windows 10 Pro license did not work
Purchased the Windows 10 Pro valid lifetime license and when I entered data it says the number is being used by another computer.
By Steve
Monday, November 9, 2026 · Customer reviews of US businesses

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We offer software and electronic equipment as well sales accompanied by guaranteed full supportt in any case, we answer each question.
Pcmasters Shop (pcmasters-shop.com) has 534 customer reviews on The Fair Hearing, with an average rating of 4.0 out of 5.
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Purchased the Windows 10 Pro valid lifetime license and when I entered data it says the number is being used by another computer.
By Steve
It was a previously used Windows 10 Key and it locked out of Windows.
By K. M.
I'm having trouble getting the programs to load and need more instructions.
By George T.
RE: Order 1573 I have been waiting for 10-days to get the Windows 10 PRO that I ordered on 2022-12-01. To date I have not received any notification of the DVD having been shipped! My shipping address is as follows: 6210 Belcrest Road Apartment 1330 Hyattsville, MD 20782-2969.
By Joseph P.
Download dis not work. I get an error code like before which is why I purchased the new product key. That key turned out to be worthless.
By Brian S.
Did not get my product
By Nighthawk
You gave me a code that didn’t work!!
By Jacob E.
Response from Pcmasters Shop· Oct 25, 2022
Our support team reached out to you! Please call us any time since our specalist are ready to help 24/7! All kinds of issues will be resolved since we guarantee successful activation.
Ordered Windows 11 Pro download with a product key. Successfully downloaded to a USB flash drive, but when I installed to the new computer, the key was bogus, according to Microsoft.
By Dave
Response from Pcmasters Shop· Sep 13, 2022
Hello Dave, You can contact our support team 24/7 by live chat phone or email. We do guarantee successful activation on all our software products. Right now one of our agents is trying to reach out.