secure boot

Recently I enabled secure boot inorder to play valorant, but after the restart my computer went dead. Now all it shows is "D-Sub, Power Saving Mode". So it's clear it's not a graphics card problem, right? I tried resetting cmos battery by removing it, waiting for an hour or so and then placing...

So my cousin got a new ThinkPad T460, but without an OS. I had a spare Windows 8.1 Pro key, so I installed 8.1 using a live USB drive after converting the ISO using Windows 7 USB/DVD download tool. It installed without any problems, but I ensured that Windows couldn't install any updates or...