Windows 10: Fresh Win 11 install question

I currently have two Windows 10 Pro retail from the MS store on two PC's. I keep hearing I can upgrade to Win 11 with this key. Once I make the necessary changes in BIOS, can I do a fresh install VIA Media Creation Tool USB to install Win 11 Pro and activate with my Win 10 Pro keys? TIA

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Install Win 11 alogside win 10 question

1. I called the support phone number and was told they do not support dual booting to Win 11.

2. I keep getting the message from the installer "we couldn't create a new partition or locate one".

3. What I am trying to do is install a fresh copy of Win 11 on a second hard drive. Win 10 is on "C". I want to put Win 11 on "T". I have tried the media creation tool. I have downloaded an ISO and used Rufus to burn it to a USB. I have tried most of the suggestions posted over the internet, but none have worked.

4. One of the solutions I can think of is to disconnect or remove the "C" drive, do the installation, and re-connect the drive. The downside to this process is the fact the PC needs to be disassembled to accomplish the process. ( remove the graphics card and one heatsink ). Another is to use xcopy with the switches k/h/e to put the files from the USB on the "T" drive and try to boot to the installer

5. I need advice as to possible solutions.

 

Fresh USB Windows 10 Install - Failing

I am trying to install a fresh copy (reformatted the hard disk) of windows 10 using a USB

• Created an installation media on a USB flash drive (Win 10 pro) from this page https://www.microsoft.com/en-us/software-download/windows10
• Changed the boot order on the other PC so that it boots using USB
• Selected custom install
• Installing Windows goes through the following steps successfully: Copying Windows Files, Getting Files ready for installation, Installing features, Installing updates and before the last step (Finishing up), it restarts
• Then it goes back to the start of the installation steps

I am stuck and have read numerous posts but don't know what to do to install a fresh copy of Win 10.

 

Fresh Install of Win10 after Upgrade?

I've upgraded Win 7 Ultimate to Win 10 Pro. My system is running slow so I want to do a Fresh Install of Win 10. Question is How do I do it? How to create a Bootable usb of installed Win 10? and also I'm unable to see Product Key of my upgraded Windows?
Is there any Step by step guide to do that? Help me out!!!