Does reinstalling Mac OS lose data?
2 Answers. Reinstalling macOS from the recovery menu does not erase your data. However, if there is a corruption issue, your data may be corrupted as well, its really hard to tell.
How do I reset Nvram on Mac?
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart.
Does the Macbook have a snipping tool?
Screenshots on a Mac Current versions (Mojave and Catalina) of the macOS come with a Screenshot app, which is accessed by pressing Shift-Command (⌘)-5. You can take a screenshot of the screen, a window, or a specific selection; you can also take a video of all or part of your screen.
What will reinstalling macOS do?
2 Answers. It does exactly what it says it does–reinstalls macOS itself. It only touches operating system files that are there in a default configuration, so any preference files, documents and applications that are either changed or not there in the default installer are simply left alone.
What does a circle with a line through it mean at Mac startup?
What does a circle with a line through it mean at Mac startup? Different from the Mac folder with a question mark issue, a circle with a line or slash through it means that your selected startup disk has a Mac operating system that can’t be used by your Mac model.
Why does my MacBook have a circle with a slash on it?
Started up the computer and during the Loading Screen, I held Option-Command-R and after about 15 seconds, it went back to the same screen of a Circle with a Slash. If you see a circle with a slash, your macOS system folder is likely damaged.
What to do if you see a slash on your MacBook Pro?
You’ll need a connection to the internet (wired ethernet works best) that doesn’t require any kind of login screen. Hold option-command-R together at power on. If you see a circle with a slash, your macOS system folder is likely damaged.
What to do when your Mac is spinning in a circle?
Press Option + Command + R keys when startup until seeing the spinning globe. (Keep your Mac connected to the Internet all the time). When entering into macOS Recovery mode, select Utilities > Terminal. Type the following command to launch iBoysoft Data Recovery for Mac.