|It would be helpful to know what sort of malware you were dealing with, as requested by XPUser4Real.|
Let’s see if we can find out what is going on with the USB port. If we can get it going, maybe you can run something from it.
Please do the following:
Go to the search box right above the Start button, and type: cmd
Now, do not use the Enter key, use: Ctrl Shift Enter (simultaneously).
You are prompted with the User Account Control dialog…allow
It will then open up a command prompt in Administrator mode
At the blinking cursor of the command prompt, copy paste the following:
REG QUERY HKLM\SYSTEM\CurrentControlSet\Services\USBSTOR
When the info shows, click the top bar of the command prompt
Select: Edit > Select all
After the info is highlighted, go back to the top bar and select > Edit > Copy
Type Exit to go out of the command prompt
Please paste the results of the reg query in your reply.