The task manager shows the system processes, performance, and many more details of your system, many users do not know how to open Task Manager, here are some ways to open it, you can use whichever you like. Each tab has more details about the system, like Performance, which has more details about CPU, Memory, Disk, etc.
Keyboard keys: CTR+ALT+Delete, then choose Task manager
Keyboard keys: CTR+Shift+esc
Keyboard keys: Windows+R
Then type in: taskmgr
Then click ok or Enter
Star Menu: start typing Task Manager, then click on Task Manager to open
Using Mouse right-click on the bottom taskbar, then click Task Manager
Hope this helped you to open task manager in Windows 7/10/11
Windows 11 system requirements are much higher than Windows 10, which means it will not support older hardware. Here are some lists and links in this post to help you find out if your current system is able to upgrade to Windows 11.
List of all minimum system requirements for Windows 11
Processor: 1 gigahertz (GHz) or faster with 2 or more cores on a compatible 64-bit processor or System on a Chip (SoC). Memory: 4 GB RAM. Storage: 64 GB or larger storage device. System firmware: UEFI, Secure Boot capable. TPM: Trusted Platform Module (TPM) version 2.0. Graphics card: Compatible with DirectX 12 or later with WDDM 2.0 driver. Display Resolution: High definition (720p) display that is greater than 9” diagonally, 8 bits per color channel. Internet connection: Microsoft account and internet connectivity required for setup for Windows 11 Home.
Your device must be running Windows 10, version 2004 or later, to upgrade. Free updates are available through Windows Update in Settings>Update and Security.
Once you have downloaded compatibility, open it and click on Check now
If your system hardware is newer you should see This PC meets Windows 11 requirements
If you want to see details click on See all results, something like this, your specs will be different
If you have older hardware, you will see something like this: example of this PC does not have Secure Boot enable and Processor does not meet the requirement, most important TPM 2.0, which this PC does not even have.