For 2 years or more I've been running Win10 (upgraded from Win7 or 8) on my 64-bit Dell machine. I was reasonably satisfied with the way it worked.
On Saturday 6/15 Windows decided to install an upgrade. (This might have been connected somehow with a truly awful freeware product I installed and then deleted, WPS_office). And that totaLLY screwed things up.
For starters, I cannot pin any applications to the taskbar. I've tried, and I know I;'m following instruucti0ns (right-click in START menu, then click Pin to Taskbar). What happens is that the applications I pick do in fact show up on the taskbar, but then when I close down my computer and re-start it, they are no longer there. My research indicates that this is a fairly common problem.
Another serious problem: In Firefox (latest version), I've set it to open with the tabs that were open when I closed it down. But that's not happening--it's launching as if for the first time, which also means that the Firefox add-ons I've installed, are not there anymore..
When I start my computer up, at one point I get a message saying "Preparing Windows". HUH????? What the [bleep] is that about? It's just a waste of time.
And Windows takes a comparatively long time to shut down, and then start up.
I am not confident that I will be able to go back to my older version, so how do I fix these problems?