The sharing of keys is illegal. Therefore, no one here will help with that.
Per the BleepingComputer.com Message Board Rules
No subject matter will be allowed whose purpose is to defeat existing copyright or security measures. If a user persists and/or the activity is obviously illegal the staff reserves the right to remove such content and/or ban the user.
The good news is that there is a program that will help you find your valid keys on your system itself.
If your system isn't operating then you will need to call Microsoft to get assistance in re-validating your key.
This is the little utility program to download. System Information for Windows
(It is a free program for private use.)
Open the program on your desktop; under software, click on licenses.
It will take just a couple of minutes to search and show you all keys on your system.
This program will also display more information about your system than you'll probably want to know.
The only easy day was yesterday.
...some do, some don't; some will, some won't (WR)