Some sites (AOL) required reentry of passwords (but Facebook and Twitter did not). Final Draft required re-activation with the product code to get out of read-only mode.
Update: Oct. 1
One little problem. Sometimes, the keyboard input (the letters) stops working if the machine goes to sleep. A restart always recovers the function. Will check further.
Update: Oct 2
Got the same fake hardware error after an attempted random HP restart even in W10. Resetting power button does bring the machine back up.
Update: Oct 4
Today I had some trouble with Quick Access in the File Explorer, which caused thumbnails to be invisible, and for renaming and copying to directories in Explorer to be impossible (it still worked in command prompt). The problem went away when I forced closed it when hung once.