BitLocker is an encryption tool for Windows users that helps protect data from unauthorized people. It requires Windows Pro, Enterprise, or Education, but is not available for the Home edition. If you have turned on BitLocker from the Control Panel, you should save a copy of the recovery key to your Microsoft Account (or somewhere else secure). If you do not have a way to access this recovery key and cannot authorize another way, you will be forced to format your computer.
Sometimes we get older and our fingers become less mobile, causing our fingertips to stay on the same key for more than a split second. If your keyboard is repeating letters against your intentions, there are ways in Windows to prevent that from happening. An accessibility feature will disable key repeats and can be accessed in the Control Panel to switch on. Or you can try this... From tollie in the chatroom: Hold "RIGHT SHIFT" for eight seconds to turn on FILTER KEYS