"In restore I have created a restore point."
You need to restore to a point before you installed the software that is causing the problem.
"windows cannot check disc whilst in use"
This is beacause windows is on this drive. check disk needs to run before windows starts.
"On start up again, back to the notice disc needs checking !!"
click here let it scan at next start up and make sure you leave it until it has finished the larger the drive the longer it takes.