mouse running on its own

this issue arises on specially new laptops when we reinstall windows

to stop this,  there is simple step 

depeends on model 

1. switch on laptop and enter bios

2. go to boot menu

3. click on advanced

4. click on secure boot and click on disable

this option may not be following this way but it is definitely there refer to guide of your laptop

to open bios

for hp press f10

for lenovo,  acer,  asus,  dell press f2

for desktop press f2 or dell or f10 depending on motherboard