Multiple issues,

[Neel35]

Since the beginning sometimes the touchpad of the laptop stays down in the left lower corner, making it unusable. 
When starting up sometimes I do not get the option to fill in my passcode, it just stays on the screensaver until I press ctrl + alt + del, then opens without filling in the code. 
Very often WiFi connection troubles even when others connect effortlessly, sometimes not showing the wifi module or options when looking for then from the taskbar or settings menu. 
Honestly I would prefer to have another device as this one has shown multiple problems since purchasing.

[BeemerBiker]

HP releases newer UEFI diagnostics periodically.
When you select F2 during boot you are requesting UEFI diagnostics.
There is an updated diagnostics package Click Here
Look for the phrase 'issues outside the OS',
Expand the'+'symbol and click the DOWNLOAD button.
The version of the UEFI diagnostics is shown at the left of that DOWNLOAD button.
When you press F2 to run diagnostics please ensure the version is the new one.

If it passes diagnostics then the problem is windows. 

if it fails diagnostics

- failure code ?

- does it pass diagnostics when first first turned on

- is it overheating?