4. * To store basic startup settings, desktop computers use a specialized form of memory, which is backed up by a small battery attached to the computer’s motherboard. The setting in this storage starts once you shut down your computer device. With an Intel processor and non- volatile NVRAM, iMac reserves the setting that is required for computer device once it starts reading hard drive and loading OS. Here, you can reset the corrupted settings easily via the process you perform while starting iMac. In order to have more support and guidance, contact at Apple Support Number.

6. * First, you need to shut down your iMac. Then you could easily launch the Apple menu and select “Shut Down” or press the power button to bring up a dialog box * After this, you have to press the power button to simply start-up your iMac. Then you need to press and hold "Command-Option-P-R" before your iMac screen becomes gray. In case you don’t depress this key combination in time, it is just to allow your iMac to complete booting * Now, you are required to hold down the four-key combination while your computer starts up. After this, release the keys once it plays its startup chime * Open the Apple menu and choose "System Preferences" to check for settings that reverted to defaults when you reset your Mac's NVRAM

7. * Call us at our toll-free Apple iMac Technical Support Phone Number – (1-877-708-3372), where you will get support and quick guidance under the supervision of trained and skilled technicians who are capable enough to handle and manage all sort of technical problems associated with Apple iMac. They strive to deliver the best result and help on your desk without wasting your precious time.

8. +1-877-708-3372 www.applemactechnicalsupportnumber.com