Windows 10: Disappearing OS

Hi, I have a Lenovo desktop which a little while ago crashed and on boot up I could only get the message "OS not found". I was wondering if anybody has come across this before and if there is a way to re-activate the OS.
Thankyou for taking the time to read this, I look forward to your feedback.

:)

 

Best way to keep vista clean and healthy

Yeah just caught it there.

I'm going to attempt to have a step by step guide on how to use these programs efficiently.

 

Taskbar doesn't disappear when entering fullscreen


I tried the Ctrl-Alt-Del and found Windows Explorer. Unfortunately, I didn't choose Restart; I killed the process. (didn't read the instructions well enough!) :-/ ... I did eventually find a way to Restart Windows Explorer, but the problem (disappearing Task bar not disappearing/reappearing as it should/used to) did not solve itself. I then RESTARTED the PC. Still not fixed.

So, I found another answer from microsoft and followed those steps. It worked! (needed the display driver updated.)

Here's that set of instructions:

I suggest you to try updating the Display Adapter drivers check if it works for you.

Follow the steps to update the Display driver:

Press Windows Key + X key and click Device Manager.
Expand ‘Display Adapters’.
Right-click on the Display Adapter listed and click on ‘Update Driver Software’.
Select the option to automatically search for the updated driver software.
Restart the computer after its updated and verify.

Also try to access the computer manufacturer's website and download the latest chipset and display drivers for your computer and install the same.

 

Taskbar doesn't disappear when entering fullscreen

Dude this was a year ago