Caps Lock on, usb3 gone or lies

Hello everybody.
Suddenly it stucks the light on, in "Caps Lock" key. Also
when I insert an usb3 memory, it says "..it can perform better blah blah.."
even if I try to every port laptop has (all usb2 and usb3).
Often when I'm using many usb at the same time, one or two ports disappear...
I'm just after a clean install and I did maybe a "mistake?"
I had all the drivers in a usb3 memory
and I if I remember well some I 'd install from there. I don't know really if that was wrong, I know only
the 3 problems that I mention above.
Any idea is welcome.
My questions are :
If problems came from drivers, which drivers are involved? (Dell xps)
Could it be Renesas usb3? or JMicron controller? or what else?
And if you believe problems came from drivers, could I just overwrite and install again any?
or I've to unistall them first?
Thank you.

Run windows update fully.

Check Device Manager for any driver issues.

Capslock is a keyboard issue, no clue as to why it would be stuck on caps lock.

Once you turn caps lock off, it should always stay off.

Thanks AddRam for your answer.
Excuse me I'm late, something happened and I was not with pc.
Device Manager looks o.k
Yes, if after many tryings CapsLock get off, it stays off, untill I need again to click it on...and then
I've the known problem...
About the usb3?...... any idea?... not so helpfull... anyway
Thanks.

not so helpfull ?

Very ignorant thing to say when asking for free help

Brian - I may be wrong, but I think he just meant you hadn't responded to his USB question.

I just think he wasn't clear.

O.k boys! ...don't confuse about my response...
In true yes! what for a help it was?... "When the light comes of...it will stay of! ! ! hahaha!!!
...GOOD HELP (just in this moment went on). That is not so deep analyse...
..and ofcourse PSCO2OO7 was right... it was even just one from my 3 questions...
I've to say also that my English are poor and that I felt happy because it was funny!
Anyway you are lovely! Have a good time! Haha


*I know that is a free help (no money), but you also have to understand that when you go to your neighbor's burned house.... at least throw a glass of water! haha

You just keep digging the hole deeper don`t you ?

Water will not help a burned house, that`s like throwing a drowning man an anchor.

Quit while you`re ahead.

Ok we are not in the same mood I'm sorry.
Excuse me (i thought you'll smile)
Anyway I must stay with my problem.
I wish for you the best.