It would help us to help you if we could have some more technical info about your iMac. The Original Poster never even responded to my queries Your Mac slowdown issues maybe different from those who posted. Try resetting the System Management Controller: After the process is finished, shut down your Mac and turn it back on after about 30 secondsĪpart from that, take a look at this Apple article and follow the instructions on Resetting NVRAM shown there: How to Reset NVRAM on your Mac - Apple Support After this, click on Verify Disk Permissions and then on Repair Disk Permissions
Click on Verify Disk and then, if asked to fix problems, on Repair Disk Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive) If this doesn't help, follow the instructions below: After your Mac boots up, restart it as you usually do. Release the Shift key when you see a grey Apple sign and the progress bar below this sign
Right after you hear the startup tone, press and hold the Shift key Wait until your computer turns off and after that press the Power button Hi! Try these basic troubleshooting steps:
