Re Dr Cleaner Pro Mac OS Volume Has

How can I go back to my old last OS X Mountain Lion, and to keep everything as it use to be.

In these circumstances, sometimes the only solution to get things working again is to reinstall OS X system software (or, if you have a recent safe backup made, restoring from Time Machine is often valid as well).

If performed correctly as described, applications and user data will be preserved and not be modified at all, since this approach only reinstalls the operating system and system files.

Newer MacOS releases also support the ability to re-install only macOS while leaving user files alone, however.

If interested you can read how for macOS Mojave and High Sierra and Sierra.

The premise is mostly the same; booting into Recovery mode to reinstall the system software.

Youll also want to set aside at least an hour or two to complete this process, the exact time it takes depends on the speed of the internet connection in use, and the speed of the Mac.

Even though this method aims to only reinstall OS X system software on the Mac, things could still go wrong and its always better to lean on the side of caution and make file backups beforehand.

If desired, you can use the Apple menu About This Mac screen to verify the version of OS X that has been reinstalled.

Re Dr Cleaner Pro Mac OS Volume Has

While its unlikely youll ever encounter such a bug yourself, it is possible for users to mess up their system folders if they have disabled SIP or are using root, if the startup Mac OS volume has been erased or misplaced, if a prohibitory symbol is encountered at startup (sometimes a folder with an X through it, or a folder with a blinking question mark), or if the OS X installation is erroneous or royally messed up.

Obviously the versions of OS X will vary depending on what came with the Mac, and what the Mac is currently running.

I tried to restart a couple of times and got the notification external components needed for download not available again a couple of times.

After watching youtube on how to erase the data from it hard drive from disk utility.

My ssd hard drive is greyed out as it has file vault turned on Im not a computer tech and just looking for the simplest easiest way to reset the laptop.

Not sure if just reinstalling the OS writes over my user account and data or if i have to erase that first.

I think its file vault being on that doesnt make it show up in disk utility ready to erase (just says disk unmounted).

Reinstalling Mac OS does not format the drive unless you want to.

My HD is working fine, no faults or in need of repair, but for some reason the machine boots up with the Apple logo loading bar takes its time to load up.

Then it stops when its full, but wont take me to the log in page even after several hours.

Somehow he deleted all his files, the recovery partition is gone, and I cant find a drive to store the freshly downloaded OS X system.

Also, the farthest Ive gotten in the reinstall process is logging into the App Store to download and then I get a window telling me this is unavailable at this time.

How To Reinstall Dr Cleaner Pro For Mac