It is the latest. Since the version of Windows you are running is so old you will probably wanna go with a clean install. Use the newest media creation tool to setup a USB drive, backup your data and...

Windows 10 21H1 is running fine on both my cheapie HP 11 Stream and my Dell Precision workstation.

Honestly it's personal preference.

What are the specs of the Laptop, brand of laptop, and how long has this problem been happening? Also do you have a reliable backup of the data (documents, pictures, etc) on a separate USB drive,...

Yes you can use Rufus, keep in mind you will need to change the disk type to MBR if you are using a older computer that uses it.
How to Install Rufus | How to use Rufus to Create Bootable USB drive...

Download the latest media creation tool for Windows 10 21h1
https://www.microsoft.com/en-us/software-download/windows10

Run the tool following the directions and choose "Upgrade this PC"

If...

So you are on Windows 10 1607?

I downloaded the iso but haven't messed with it yet.

You can try to refresh Windows. This video shows you how to do a refresh without losing data. How to Reset Windows 10 Without Losing Data - YouTube you will still wanna backup your important files...

It sounds like you may have gotten some malware; those processes should not be taking that much resources. Download the free version of Malwarebytes https://www.malwarebytes.com/mwb-download install...

Winaero Tweaker You can use winareotweaker to enable the old Windows Photo Viewer.
Open powershell as a administrator and then run the following command to remove the new photo app: Get-AppxPackage...

Hello, I'm new to the forum but not to computers; I've been using Windows since Windows 95; I've also used various Linux Distros. I hope to be able to help some people out with problems and maybe...

Enterprise versions of programs generally have a different updating schedule; for instance, they may stay on one revision longer than the typical version; this makes them more stable for business...