Windows 7 automatically manages basic keyboard drivers. To force a reinstall:
Here is a comprehensive guide on how to install and update keyboard drivers on Windows 7. Method 1: Use Windows Update (Easiest) install keyboard driver windows 7
If Windows cannot find the driver automatically, you must download it from the keyboard manufacturer’s website. Windows 7 automatically manages basic keyboard drivers
Choose . Windows will search your computer and the internet for the latest version. install keyboard driver windows 7
If you find a driver but it says it is not for Windows 7 (or is for Windows 8/10), you can try to force it:
If you are using an old-school round purple plug, you must restart your computer after plugging it in for the driver to initialize.