i upgraded Win 10 on my old laptop last night, guess what? Win 10 kept crashing and restarting after i logged in. i had to restore it to factory setting, reinstall all Win 8.1 updates and some software. fortunately i tried it on less used machine first...
Will never upgrade to Win 10 again till Win 8.1 is EOL.
Old laptop = Driver problems, and laptops tend to have a lot of them It's not necessarily something MS can do much about because a lot of those drivers are model-specific and if the OEM doesn't feel like updating it, you're SOL.
Will never upgrade to Win 10 again till Win 8.1 is EOL.