Microsoft Support

Microsoft Home Page

Sign in

Select the product you need help with

Select a solution

Fix Windows system performance problems on slow Windows computers
Automatically troubleshoot and repair Windows performance problems. Improve, optimize and speed up Windows computers and make slow running PCs faster.
Why does my action center keep displaying a problem with my PSIkey not working
I have a PSIkey file on my comp but it is 4yrs old would that make any difference to it working properly. Can anyone help PLZ
How do I change to a high speed USB port?
Twice recently when I connected my new Sony audio recorder to my PC via the USB cable, a box has popped up that says something like: