I have an IIS server, with no SharePoint just hosting some site, why did this started ? I don’t know but this was very helpfull:

Click Start, and then click Run.
In the Open box, type cmd, and then click OK.
At the command prompt, type net stop mssql$sharepoint, and then press ENTER.
Type net stop sptimer, and then press ENTER.
To close the command prompt, type exit, and then press ENTER.
You can even go to Services.msc and look for the SharePoint Timer Service