Hi BillalFarooq,
- What is the make and model of your keyboard?
- Are you using a wired or wireless keyboard?
- Is the issue occurs only when you are trying to type on any particular program?
- Have you made any recent software or hardware changes on the system?
This may happen due to any recent changes on the system that might have changed the keyboard settings.
Let’s try the following step and check if it helps.
Method 1:
Step 1:
Let’s try connecting a different USB keyboard and check for the issue.
Step 2:
You may check on the keyboard if the Fn key (Function Key) is enabled. If it is enabled, try to toggle the Fn key to disable it.
Method 2:
If ‘Method 1’ doesn’t help, you may download and install the latest keyboard software from the device manufacturer website.
Update drivers: recommended links
Method 3:
If you are using a Microsoft Keyboard, you may also refer to the articles and check if it helps.
Troubleshoot wired keyboards that don't respond or that type wrong characters
Troubleshoot response failures in wireless keyboard or mouse
Hope the information helps.