Ensure you are the only user signed into the computer.
Task sequences will never appear if another user is already signed into the computer.
You can sign out other users by launching Task Manager and going to the Users tab.
Refresh Software Center with the F5 key
If Software Center is left open, it may not refresh automatically when new software becomes available.
Press F5 with Software Center in focus to update the list of available software.
Ensure the computer is in the correct Organizational Unit in AD
Some software deployments are based on AD OU. If the computer has not been moved to the correct OU, software may not be available in Software Center.
Move the computer to the correct OU for the department or lab it belongs to (or wait for ADSorter to run).
After moving the computer into the correct OU, collection membership may need to be updated (this will happen automatically usually within 1 day or less, or can be performed manually).
Hope This Works,