Whilst you can just about manage to navigate around Windows with just a keyboard in an emergency, it's certainly not satisfactory as some operations need a mouse, especially on websites.
Try re-installing the driver software for your wireless keyboard. That should fix the keyboard. Now unplug the mouse then plug it back in. Windows will hopefully re-install the proper mouse driver.
I suggest you stop using the Driver Scanner software. It's much safer (though allbeit less convenient) to download any drivers you need from your PC manufacturer's website (in the case of OEM brand-name PCs) or from the mobo manufacturer's website (in the case of no-name or self-built PCs).
And, of course, you should bear in mind that updating drivers is not compulsory despite what you may have read on the Driver Scanner website. If a device is working perfectly fine with an out-of-date driver, leave it alone!