Windows can be configured to run tasks at specific times, periodically or when triggered by some event (e.g. a user logon).
Tasks usually run with the privileges of the user who created them, however administrators can configure tasks to run as other users, including SYSTEM.
List all scheduled tasks your user can see:
```powershell
# cmd
schtasks /query /fo LIST /v
# powershell
Get-ScheduledTask | where { $_.TaskPath -notlike "\Microsoft*" } ft TaskName, TaskPath, State
```