Schedule Task Error 0x800700005

Error: 0x800700005 access denied when creating a new task

The cause for this error is because Administrator user account does not have permission to the task scheduler folder. 

To fix this error:

1. Open a command prompt
2. Run “Net Use T: \\%computername%\C$\Windows\Tasks /Persistent:No”
3. Open Explorer, right-click Tasks
4. Go to Properties and click the Security tab. In security permissions grant Administrators and System Full Control if they do not already have it, and then click Apply. 
5. Then click Advanced, check Replace permission entries on all child objects, and click Ok
6. Restart the Task Scheduler service and give it another try.