Hello guys,I have a Lenovo ThinkPad 8 tablet which came with windows 8.1 and I was very happy with it. After I upgraded to windows 10 things were smoot at first but recently I noticed a noticeable battery drain even if the device is in sleep mode (battery drains completely in 8-10hours even in sleep mode). But the most frustrating things are the apps not working. Mail, calendar, maps, photos, even OneNote and Wunderlist. I would like to reinstall the whole device but I am not sure how to proceed. Should I do the factory reset back to Win 8.1 losing the free Win 10 upgrade or should i do a clean install of Win 10? Is it even possible to do a clean Win 10 install if I donĀ“t have the product key? Is it worth keeping Win 10 in an 8 inch tablet?

Hi Welcome to Windows Central. I don\’t know why your having a issue with your battery. I personally have no use for sleep mode, but that\’s just me. Batteries do wear out. Yes you can do a clean install if you have validated your Microsoft digital Key. Here\’s link that explains W10 Digital Key! https://support.microsoft.com/en-us/…-10-activationHere\’s link from HTG how to do a clean install. How to do a Clean Install of Windows 10, the Easy WayIf you have more questions, I hang out here and I log in frequently. I would be happy to answer any questions you might have. IMHO, I would keep W10 and give it another try before rolling back to W8.1 Let me know how things go for you!

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