Dear Dan Caudill,
Thank you for reaching out to the Microsoft Q&A Forum.
That sounds incredibly frustrating and like a significant disruption to using your computer normally. Since copy-pasting works, it indicates the input fields themselves are functional, but direct keyboard input is being blocked or intercepted specifically for browser applications.
You could try some troubleshoots below:
- Perform a clean boot:
- Press Windows + R, type
msconfig, and press Enter. - Go to the Services tab.
- Check the box "Hide all Microsoft services".
- Click "Disable all".
- Go to the Startup tab and click "Open Task Manager".
- In Task Manager's Startup tab, right-click and disable all startup items.
- Restart your computer then try typing in your browsers again.
- Press Windows + R, type
- Create a new local user account:
- Go to Settings > Accounts > Family & other users.
- Click "Add account" under "Other users".
- Choose "I don't have this person's sign-in information" and then "Add a user without a Microsoft account."
- Create a temporary local account.
- Log out of your current account and log into the new TestUser account.
- Open a browser and try typing. If it works here, your main user profile is corrupted. Migrating your files to a new profile is complex but might be the solution.
Or you could try typing in your browser using another keyboard. Please try these methods and let me know how it goes.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.