ternqtxa.sys was mentioned as the problem in your BSODs. It is a randomly named file so probably malware but it appears to be gone now.
If you start up File Explorer (Windows Key + x then choose File Explorer) can you search from its search box?
If you Windows Key + x then choose Search can you type anything?
If you Windows Key + x then choose Run can you type in
and hit Enter?
Does it bring up the services window? Scroll down. Is Windows Search Running? If not what error do you get when you try to start it.