Is your mouse usb or wirless? If it is wireless you might want to check and see if your drivers are up to date. I imagine if you have a usb mouse you might want to check on drivers also. Also check in your bios and see if they are enabled.
It happened couple days ago when booting process started with black screen for almost 2 minutes, then mouse didnt start for a minit.
Too long for booting. I tried also restore point from couple days ago and same thing.
Ok, What I mentioned was some of the things I went through with my mouse. My knowledge of what else could be causing it is very poor. I am sure that someone here will be able to help you. Hang in there. Because many live in different timezones it may take awhile. My faith is in you getting the help you need from someone.