Windows 10: I've had this issue on Windows 10 as well as on my new laptop with Windows 11: WHEN THE...

Seriously, this is a long-standing issue that cripples load times and I'm sick of it. This is made worse by having it reactivate once disabled, as though we're not trusted to actively make this decision. I'm begging you Microsoft, make real-time protection less of a memory hog or just allow me to permanently disable it. You're a billion dollar company, I know you can improve this.

:)

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.

 

New install Windows 10 (issue solved)

It's good that you're not experiencing any issues. Unfortunately many folks are, a quick Google search will show the same info im offering the OP.

Heres a couple examples:

Here

Here

It's basically what I mentioned above, small issues here and there ,but nothing to end your day.. for the most part.

I know it's anecdotal, but for my experience 95% of the time it's perfectly fine. The issues I've run into wouldn't be enough for me to roll back , but they would be enough (had I not installed it yet) ,to avoid it for another couple weeks which is why I'm suggesting it to the OP

Windows 10 Fall Creators Update problems and complaints

• Installation problems with the Fall Creators Update
• Microsoft Edge problems with the Fall Creators Update
• Drivers problems with the Fall Creators Update
• Experience problems with the Fall Creators Update

keep in mind, as of recently, the FCU is installed on 5% of devices roughly.....

 

Windows 10

no, you can't go back..
I suggest creating a backup image of your os drive