When using an iMac computer for any length of time, it tends to gather unnecessary programs, files and other junk that slows it down or makes it hard to maintain. One solution involves erasing the hard drive and reinstalling the operating system through the system restore utility. This effectively restores the iMac to its original factory settings. The system restore utility is accessible after rebooting the computer.
Also, it may cause serious havoc on your web browser and the only way to avoid it is to remove Offers4U adware. Please, consider using Reimage or alternative anti-malware programs to prevent the second appearance of this app. Michael: Offers4U virus has just infected my Mac, and I don't know how to fix it. What is the easiest way to remove this. Apps like MacKeeper or any other maintenance apps like CleanMyMac 1 or 2, TuneUpMyMac, MacCleanse or anything like these apps, installed on your Mac, while they appear to be helpful, can do too good a job of data 'cleanup' causing the potential to do serious data corruption or data deletion and render a perfectly running OS completely dead.
Step 1
Click the Apple icon, and then click 'Restart' from the drop-down menu.
Step 2
Press 'Command-R' when the screen goes dark. Continue holding until the recovery window appears.
Step 3
Click the 'Disk Utility' option, and then click 'Continue' to open the Disk Utility window appears.
Step 4
Select your main hard drive from the list of drives on the drive pane.
Step 5
Click the 'Erase' tab. Set the format to 'Mac OS (Extended Journaled)' in the Format drop-down menu.
Step 6
Click the 'Erase' button. Wait for the process to complete, and then click 'Quit.' The main restore window appears.
Step 7
Select 'Reinstall Mac OS X ,' where '' is your OS X version name. The OS X reinstall window appears.
Step 8
Click 'Continue,' then 'Accept' to accept the OS X license agreement. The drive selection window appears.
Step 9
Click the icon for your main hard drive that you just formatted, and then click 'Install' to install a new operating system set to the original system settings.
Tip
Using the Disk Utility installs the current operating system to factory settings. For older versions or OS X, you need an installation disk.
References
About the Author
G.S. Jackson specializes in topics related to literature, computers and technology. He holds a Bachelor of Arts in English and computer science from Southern Illinois University Edwardsville.
More Articles
When using an iMac computer for any length of time, it tends to gather unnecessary programs, files and other junk that slows it down or makes it hard to maintain. One solution involves erasing the hard drive and reinstalling the operating system through the system restore utility. This effectively restores the iMac to its original factory settings. The system restore utility is accessible after rebooting the computer.
Step 1
Click the Apple icon, and then click 'Restart' from the drop-down menu.
Step 2
Press 'Command-R' when the screen goes dark. Continue holding until the recovery window appears.
Step 3
Click the 'Disk Utility' option, and then click 'Continue' to open the Disk Utility window appears.
Step 4
Select your main hard drive from the list of drives on the drive pane.
Step 5
Click the 'Erase' tab. Set the format to 'Mac OS (Extended Journaled)' in the Format drop-down menu.
Step 6
Click the 'Erase' button. Wait for the process to complete, and then click 'Quit.' The main restore window appears.
Step 7
Select 'Reinstall Mac OS X ,' where '' is your OS X version name. The OS X reinstall window appears.
Step 8
Click 'Continue,' then 'Accept' to accept the OS X license agreement. The drive selection window appears.
Step 9
Click the icon for your main hard drive that you just formatted, and then click 'Install' to install a new operating system set to the original system settings.
Tip
Using the Disk Utility installs the current operating system to factory settings. For older versions or OS X, you need an installation disk.
References
About the Author
G.S. Jackson specializes in topics related to literature, computers and technology. He holds a Bachelor of Arts in English and computer science from Southern Illinois University Edwardsville.