![]() ![]() Also check how much Disk Space you have left: If its less than 10-20% of the original I strongly suggest you clean up a bit. You should also have a look at the apps that open at login by going to System Preferences > Users > Login Items. Check what apps are running in the background using the Activity Monitor (found under Applications > Utilities), and get rid/uninstall of any third-party unnecessary apps that might be using too much memory. As far as Time Machine is concerned, your new backup will be as if it is from a different computer, even if youre using the same MacBook Pro with a new hard drive. Simply tell Time Machine to backup to that drive, and Time Machine with create a new folder in the backups.db folder on your external drive. If your computer is slow, though, I suggest you check other stuff first. Yes, you should have no problem doing that. You can re-install Lion without erasing any of your files, which should be the way to go, though you also have the option to format your disk using Disk Utility before installing.įor more info, I strongly suggest you visit this link: ![]() Your mac should now boot using the recovery disk, where you have several utilities to help you troubleshoot your computer, including the Lion Installer. Press and hold the SMC reset keys for 10 seconds. If your MacBook Pro has a touch bar, the 'Power' button is also the Touch ID button. Simply start your computer while pressing Command+R. In order to reset the SMC, you'll need to hold down the Command, Option, and Shift keys all at the same time while also holding down the 'Power'. Lion installs a recovery disk by default on your computer, so you can troubleshoot and re-install the OS without having to download it again.
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