The "Not in Time Window" error occurs if the Backup Exec is unable to start the job within given time limit or the time window specified for the backup job is overlapping with another job.
Refer to the following example for better understanding
Example:
You have configured a backup job name back1. Which starts at 9:00PM and finishes at 11:00 PM. You have configured another backup job named back2 and specified the time window 10:00PM and 10:30PM. In that case back1 finishes at 11:00 PM. So, Backup Exec will unable to start the backu2 within given time limit (10:00PM and 10:30PM). Therefore, back2 will result
is "Not in time window" status.
To resolve the issue, perform the following:
1.) Ensure that no backup job is running between 10:00PM and 10:30PM( in reference with the above example)
2.) To isolate the cause of the issue, schedule the problem job without time window and verify the result.
3) Extend the Time Window as mentioned in our earlier reply.
For additional information refer the following technote:
When schedule jobs run, they go immediately into "Not in Time Window" status.
http://support.veritas.com/docs/264665
But,if the you wish to manually uninstall the software then it is recommended to call our support engineer.