1. In the Start Search box type in services.msc and press the Enter Key.
2. In the Services list scroll down to Portable Device Enumerator Service.
3. Double click on it to launch.
4. Make sure the Start up type is set to Automatic,if not change accordingly.
5. Click OK/Apply. For Windows 8 or,Windows 8.1 Preview Build:
(If you're using a mouse, point to the upper-right corner of the screen, and then click Search.) 2. In the Search box type type in services, you will find View local services, click on it and follow the rest of the steps as mentioned in Windows 7.
Richard Mueller edited Revision 1. Comment: Added tag "Has Image", changed tags "Windows8.1" to "Windows 8.1", "Windows7" to "Windows 7", and "Windows8" to "Windows 8"