I will not attempt to explain Microsoft'isms about how things should work or not.
CHKDSK has some command line options which I've used to complete your task. Use Start, Help and Support to learn about CHKDSK.
Next, SCHEDULING is a FEATURE all to itself. By usng the word SCHEDULE, you are saying to me that you are attempting to SCHEDULE a program. Since SCANDISK doesn't exist, it's best to avoid that term and the Error Checking, while interesting is not a program that we can submit to the SCHEDULED TASKS.
This is a big OS and while it may seem that I'm being a bit picky on what words mean, it's all we have to communicate about this OS. If you want to define something new, go ahead and tell a lot more. Or just hang in there and we'll work through it.
I want you to succeed.
Bob