Windows 10 on both an old 2011 upgraded computer and a new 2016 computer was an excruciating experience

Windows 10 could only have been a worse experience if I had paid for it!

I am not angry at Microsoft, as they did give me Windows 10 for free! I do feel a little misled about its reliability on older computers never certified for its installation by the manufacturer though.

Comparable specification Windows 10 computers from multiple manufacturers can have very different performance between them.

Using Microsoft Windows 10 has been marked by extremely poor computer performance whenever background updates are in progress.

Windows 10 scrolling blue circle, why are you so mean to me?

I have three Microsoft Windows 10 computers with 4GB of RAM and Intel processors: 1. The first was a free upgrade from Windows 7 to Windows 10 and is unusable. 2. The second is a Windows 10 computer with a Celeron processor and is unusable whenever background updates are in progress. 3. The third is a Windows 10 computer with a i3 processor and runs really slow when background updates are in progress. Both Windows 10 computers suffer from horrible lag in normal use.

I'm getting a daily email from Microsoft which I have been ignoring that states a hacker is trying to access my account. As far as the Microsoft account goes, the hacker can have it...along with all of the nasty Windows 10 upgrade problems!

I rate Microsoft windows 10 at one level above a nasty computer virus.