Computer screen locks up. Is the “fn” button responsible?

[Casper-23_]

   My HP LAPTOP will not allow me to open any apps from my screen. The screen appears to be locked. Does the “fn” button have the ability to lock my screen?

   I have noticed that an icon on the bottom right corner is missing. It was there yesterday along with two other icons: internet icon and a notification icon. The icon that is missing looks like a small clock set at 3:00 o’clock or 9:00 o”clock. 
   I believe I deleted it from my screen at the end of yesterday not knowing its function. DID I BLOW IT?

If so, is it retrievable?

[sandytechy20]

@Casper-23_ 

Welcome to the HP support community.

I understand that your notebook screen is locked, I am glad to assist you.

Update the Bios, chipset, and drivers using HP Support Assistant.

Download and run the HP Support Assistant from this Link: Click here

• HPSA will automatically search for all the latest drivers for your Notebook
• Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.
• 
• Click Check for updates and messages to scan for new updates.
• 
• Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.
• Click the update name for a description, version number, and file size.
• Select the box next to any updates you want to install, and then click Download and install.

Also, ensure Windows is up to date.

• Select the Start  button, and then go to Settings  > Update & security  > Windows Update , and select Check for updates. If Windows Update says your device is up to date, you have all the updates that are currently available

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.