Windows 10: Letter m not working in PC

I am facing a very strange issue, the letter m stopped working in my PC few days ago.The keyboard is fine, it works with other laptops and PC's, but just when i connect it to my current PC, only the letter m doesnot work. Even in the on screen keyboard, the letter m doesnot work. I think it could be because of some recently installed windows updates, but it won't allow me to uninstall any updates.Can you help?P.S. I had to copy paste the letter m when typing this problem as well :

:)

 

Letter M will not work on keyboard

The letter M works on lock screen and all accounts of pc except Mine anytiMe
i want to use the letter M i have to copy and paste froM google i have windows 10 hoMe
64x

 

I have just updated my PC's to windows 10

Hi Hugh,

In your first PC, you have mentioned that your disc drive is not recognized in File Explorer but is displayed in the Device Manager. This could occur if a drive letter is not assigned to the CD/DVD drive. I would suggest you to try assigning a drive letter
to the disc drive and then check if it is displayed in the File Explorer. Press Windows key + X, click on 'Disk management' and then check if the disk drive is listed. If it is listed without a drive letter, right click on the drive and select 'Change drive
letter and paths'. Click on 'Add' and then assign a drive letter that is not assigned for any other drives. Now, open File Explorer and check if the drive is listed.

In your second PC, you have mentioned that there is no sound. In this case, I would suggest you to try the steps suggested in this article and check:

Fix sound problems in Windows 10

Try these steps and let us know the results for further assistance.

 

Windows 10 Migration to SSD - How to Change Drive Letter "M" to "C"?

Hi Joe,

Thank you for posting your query on Microsoft Community.

I understand that you are facing issues with changing the drive letter from M drive to C Drive on Windows 10. I apologize for the inconvenience caused to you.

To assist you better, please provide us the below information:

When you boot the computer, is the drive letter for the System drive displayed as M Drive?

I recommend you to refer to the suggestion provided in the below Microsoft Help Article and check if it helps. The below link will be also applicable to Windows 10. To open Control Panel, type it on search bar and click on it.

Change, add, or remove a drive letter:

Windows help & learning - Microsoft Support

Disclaimer:

• 
  Some programs make references to specific drive letters. If you change a drive letter, these programs might not work correctly.
  
• 
  If you get an error, the drive you are trying to change might be in use. Close any program or window that is using the drive and try again.
  
• 
  You can't change a drive letter if the drive is either a system partition or a boot partition. For more information, see
  
  What are system partitions and boot partitions?
  

Reply to us with the information, so that we can assist you better.

Let us know if you need any further assistance on Windows related issues and we will be glad to help.