Hi DWB,
Have you had a chance to try the guidance in the AI Answer above? If so, please let me know which steps you tried and what happened.
Since Voice Typing opens with Windows key + H, I’m wondering whether the keyboard may be sending an unintended shortcut or repeated keystrokes. Could you confirm the exact Surface and keyboard models? Does the problem begin immediately when you switch the keyboard on or only after pressing a key? Also, when the Surface restarts, do you see a blue screen or stop code?
Please check whether the Windows, H, Ctrl, Alt, Esc or microphone key feels stuck. If possible, test this keyboard with another computer, then try a different Bluetooth or USB keyboard with the Surface. This should show whether the problem follows the keyboard or stays with the Surface. Testing the keyboard on another PC is also part of the official troubleshooting guidance.
I’d also run the available checks under Surface app > Help & support and note any issues it detects.
Please let me know what happens with those comparison tests.