09-25-2018 05:33 AM
Hi hopefully someone can help. I recently needed to do a factory reset on my Edge thinkpad E530. I then wanted to upgrade to windows 10 but the install failed saying invalid product key why would this be as i am assuming that the product key is what the system was supplied with
09-25-2018 06:12 AM
Do you have your Windows 7 product key? If so make a note of it in case you need to contact Microsoft. https://support.microsoft.com/en-us/help/10749/windows-10-find-product-key
The free upgrade to Windows 10 has ended. Was your attempt to upgrade done with a purchased Windows 10 retail copy?
See if this information helps: https://www.redmondpie.com/windows-10-product-key-and-activation-how-to-find-it-and-how-it-works/
Post back if you still have problems.
09-25-2018 10:14 AM
Hi Bugbatter thank you for your reply. i did upgrade when it was first free but didnt like it then so went back to widows 7. however this was after the roll back time and a friend restored my system i believe withe the backup /recovery disks. Maybe he did not. I have got the recovery disks so i will try those.