How to completely reinstall windows 11 from usb for downgrade

Since you've been using 25H2 for a while, the 10-day window to simply "go back" has likely passed . This means a clean installation from a USB drive is the correct path forward. This method will give you a completely fresh start by wiping your current drive and installing the older version you prefer.

Creating a Windows 11 installation USB drive with Ven toy if you are going to completely reinstall Windows 11 from USB. It is a favorite among IT enthusiasts because you can keep several ISOs on one drive. If you later want to try a different version of Windows or a Linux distribution, you just copy the new ISO file to the drive—no need to reformat or recreate it .

 Once you've booted from the USB drive, follow the on-screen instructions to complete the Windows 11 installation process. This will involve:

Formatting the target hard drive or partition

Installing the Windows 11 operating system from scratch

Note that using Ven toy to reinstall Windows 11 will completely erase all data on the target hard drive or partition. Be sure to back up any important files and data before proceeding. And then, please completely reinstall Windows 11 from USB.