Windows 10: How do I fix or resolve a total bluescreen on my PC? The PC isn't showing any inscription...

I tried restarting my PC for some installations then all of a sudden my PC screen just went blue completely without any inscription or writing showing on it, I tried several methods to reboot but it eventually return to complete blue screen mode with no inscription on it to read, the cursor to isn't showing, how do I resolve this?

:)

 

Printer isn´t working after latest update.

After the latest update from Windows, my Canon Pixma ip6600 printer isnt working. In Device Manager it shows up as working properly but when I go to print it isn´t listed as an option in any programs. Troubleshoot suggests it´s a USB 2 printer on a USB
3 port and that that´s the problem but that cant be since it worked fine before the update. I´ve tried to uninstall and plug it back in but that doesn´t work either.

 

Cortana isn´t working

When I hit enter, it did something, but there´s still no Cortana, even after restart. So I tried it again, but now it says that it failed, because it´s already installed and it´s working in PC. So it should work, but Cortana still isn´t here.

 

Network Discovery Not Showing PC

When I click on "network" in File Explorer using PC#1, it shows many devices on my network but none of the device are computers (with the excption of PC#1) . It shows Fax, , media devices, multifunction devices. None of the PC I have show up in the list. The PC is on a private network and internet sharing is turned on. My other PCs show all the PCs (even the PC#1).

Please suggest fix.

***moved from Windows / Windows 11 / Internet and connectivity***