Task Scheduler error “The user account is unknown, the password is incorrect

Windows Scheduled Task Errors

I have an website up-time script that I need to deploy in a test environment.
The script has to be run as a scheduled task in Windows Task Scheduler and is designed to be run on a 15 minute interval.

I couldn’t seem to be able to set a scheduled task if my life depended on it because something was killing it every time I would try to create it. 

The error I got was something like…

Task Scheduler – The user account is unknown, the password is incorrect, or the user account does not have permission to modify the task”

After 30 minutes of scouring the various blogs and tech boards, I had found one little hint that pointed my in the right direction.

Check Your Antivirus Software

One  post, that had not even gotten a vote up stated that I should check my Antivirus to see if it was restricting writing of files to the System32 directory in Windows.

Sure enough, I temporarily disabled Avast Antivirus which had been blocking the creation of the scheduled task and now my Uptime script is working as designed.

The morale of the story is always remember to check your Antivirus settings when you run out of checking permission settings as a troubleshooting step.  

Hope this helps somebody!
~Cyber Abyss

Author: Rick Cable / AKA Cyber Abyss

A 16 year US Navy Veteran with 25+ years experience in various IT Roles in the US Navy, Startups and Healthcare. Founder of FinditClassifieds.com in 1997 to present and co-founder of Sports Card Collector Software startup, LK2 Software 1999-2002. For last 7 years working as a full-stack developer supporting multiple agile teams and products in a large healthcare organization. Part-time Cyber Researcher, Aspiring Hacker, Lock Picker and OSINT enthusiast.