that they wil run on a friday that will update and scan the computer.
Why do you need a .bat file to run updates and scan your system ? ? Are you talking of M/soft updates and Antivirus scans ? ?
Updates can be set to download , or download and install at any time you select - This is done in Control Panel -
Scans for infections (antivirus) can be set to run daily, weekly, or as you choose, depending on your A/virus program -
Are these the scans etc, that you want to run ? ? Or is there some more options you want to add ? ?