Windows 10: can i please get my product key ,and be registered in acer

so how must I get my product key because I want to update my and I don't have product key I don't

even know where can I got its

:)

 

Find Windows 10 Product Key Registered

Hi,

I have bought 6x Windows 10 product keys for various computers around the house, and have the Product Keys listed in a document. I have listed which computers have been registered with which Product Key. Unfortunately I didn't immediately document which
key I used with the last computer I installed.

Is there any way I can get the Product Key that was used on a particular computer? Even if it's the last 5 digits that will help.

Many thanks for your help.

Andy

 

Product key not registering

Hello, I installed Windows 10 for free when it came out thus I never actually had to register a key, but recently today I had to reboot and fix my computer due to constant black screens and now it's requesting me to put in my product key to activate window.
I have the product key but whenever I enter it, I get the error 0xc0000022, even though I have checked and the error key is correct, I don't know what the issue is, someone please help

 

Product key

Hi Megan,

A product key is used when activating a software.
To help us determine the appropriate troubleshooting steps that can resolve your concern, we'd like to ask the following questions:

• What product are you trying to activate?
• Are you looking for the product key to activate your Office application?
• Which version of Office are you trying to activate? To check this, you can perform the steps posted on this
  link.
• Are you looking for the product key to activate your Windows?

We look forward to your response.