If you feel that your mouse is not working properly, than you can use these short keys to operate without mouse.
Here are some common short keys:—
Alt + Space + R
This short key reduces the size of window.
Alt + Space + M
You can move any small size window to any corner of your desktop.Use arrows keys to move left, right, top or bottom and press Enter.
Alt + Space + X
You can maximize any small window by pressing this short key.
To minimize any window use this short key.
Alt + Tab.
Maximize any minimized window. Moreover if you are using two or more than two programs then you can also use this short key to select your required programe.
If you want to shut down your computer without mouse then press window key and then press “U” key 2 times.
Win + U + R
Use these keys to restart your Computer.