The system may have converted to a different layout or typing language. This will cause the system to type on keyboards from different countries.
Follow these steps to reset your keyboard to the proper layout:
• On your keyboard hold the ⊞ (Windows key) + X.
• Select the "Settings" icon (looks like a gear)
• Choose "Time and Language" Category
• Select "Region and Language" on the left menu
• On the right side, update the Country and Region to match your location and language