I want to put different windows but my PC is showing daignoising your pc do how to put new windows

Solution
You would need a copy of Windows and a device to install it from (CD/DVD/USB). You would, while the laptop is off, then connect/insert this media and then turn the laptop on. It should then start up via that connection and allow for the installation.
You would need a copy of Windows and a device to install it from (CD/DVD/USB). You would, while the laptop is off, then connect/insert this media and then turn the laptop on. It should then start up via that connection and allow for the installation.
 
Solution