Solution 1 - Start Task Scheduler from the Command line
- Press Windows+X, and then select Command Prompt (Admin).
- Type the following command, and then press Enter:
net start task scheduler
Solution 2 - Check if the Task Scheduler service is running.
- Press Windows+R.
- Type services.msc, and then click OK.
- Look for Task Scheduler, right-click, and then select Properties.
- Under Startup type, make sure that it is set to Automatic.
- Click Start > Apply > OK.
- If the issue persists, try restarting the Task Scheduler service by selecting Restart.
Solution 3 - Perform a clean boot.
- Press Windows+R.
- Type msconfig, and then click OK.
- Go to the Services tab.
- Put a check on the checkbox for Hide all Microsoft services.
- Click on Disable all.
- Go to the Startup tab, and then open Task Manager.
- Close Task Manager, and then click OK.
- Restart your PC.
Solution 4 - Create a new user and check if the same issue persists. If it doesn't, the issue might be due to a corrupted user profile.
- Click Start, and then go to Settings > Accounts > Family & other people > Add someone else to this PC.
- Enter a user name, and then select Next.