How to Fix Wrong Hard Drive Data Usage Calculation in OS X

Make Sure Spotlight Is On and Indexing Is Enabled. First you need to make sure that Spotlight is enabled for your system. To do this: ...
Reindex Your Mac's Hard Drive. The next step is to have the system reindex the hard drive, which can be done in two ways: Reindex Your Hard Drive Using Spotlight's Preferences.

How do I fix a corrupted hard drive Mac?
How do I fix a smart hard drive error on my Mac?
What happens if you accidentally erase Macintosh HD?
How do I reduce my Macintosh HD data?
How do I fix a corrupted hard drive?
Can you recover data from a failed hard drive?
How do I fix a hard drive with smart failure?
How do I clear Smart failure predicted on my hard drive?
How do I reset my hard drive health?
How do I erase my hard drive and reinstall macOS?
Which hard drive do I erase on my Mac?
How do I restore a wiped MacBook?

How do I fix a corrupted hard drive Mac?

Repair Mac Hard Drive by Using First Aid in Disk Utility

Disk Utility is a free macOS application that can help you resolve Mac hard drive problems. When your startup disk is corrupt, your Mac won't boot. In that case, you need to launch Disk Utility in macOS Recovery mode and repair the disk.

How do I fix a smart hard drive error on my Mac?

Restart your Mac, immediately press-hold the Command + R keys, when the Apple logo appears, release. Now, on the macOS Utilities window, choose Disk Utility, then press Continue. From the left pane, now select the startup disk, and then click First Aid. Click Run to repair the startup disk.

What happens if you accidentally erase Macintosh HD?

Boot to the Internet Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.

How do I reduce my Macintosh HD data?

Use Disk Utility to erase your Mac

Select Macintosh HD in the sidebar of Disk Utility. Don't see Macintosh HD? Click the Erase button in the toolbar, then enter the requested details: Name: Macintosh HD.

How do I fix a corrupted hard drive?

Steps to Repair Corrupted Hard Disk without Formatting

Step 1: Run Antivirus Scan. Connect the hard drive to a Windows PC and use a reliable antivirus/malware tool to scan the drive or the system. ...
Step 2: Run CHKDSK Scan. ...
Step 3: Run SFC Scan. ...
Step 4: Use a Data Recovery Tool.

Can you recover data from a failed hard drive?

If you mean a hard drive that has suffered physical damage, then we have bad news for you: you most likely won't be able to recover any data from it at home. But if you mean a corrupted or formatted hard drive, then you can use data recovery software to get back your data.

How do I fix a hard drive with smart failure?

Steps are:

Go to System Recovery Options.
Run chkdsk /f /r.
Choose Command Prompt to start disk repairing.
Insert Windows installation disc.
Restart the System.
Click the Start button followed by the arrow next to the Lock button.
Now, choose the Language Settings, then click next.
Then click on the Repair option.

How do I clear Smart failure predicted on my hard drive?

1 Resolve/Disable the Smart Failure Predicted on Hard Disk Error

Method 1: Use CHKDSK for Bad Sectors and Fix Them. ...
Method 2: Defragment the Disk. ...
Step 1: Find Start. ...
Step 2: Select the Drive. ...
Step 3: Find Tools. ...
Step 4: Tools. ...
Step 5: Click on Scan for and Attempt Recovery of Bad Sectors. ...
Step 1: Download the Software.

How do I reset my hard drive health?

Here are some steps that can help you to increase HDD life on your computer:

Run Check Disk (CHKDSK) Scan. ...
Perform Defragmentation. ...
Avoid Overheat and Protect From Dust & Moisture. ...
'Ground' Your System Properly. ...
Use Of Surge Protectors. ...
Actively Monitor Your Hard Drive. ...
Install OS and Other Data Separately.

How do I erase my hard drive and reinstall macOS?

Select your startup disk on the left, then click Erase. Click the Format pop-up menu (APFS should be selected), enter a name, then click Erase. After the disk is erased, choose Disk Utility > Quit Disk Utility. In the Recovery app window, select “Reinstall macOS,” click Continue, then follow the onscreen instructions.

Which hard drive do I erase on my Mac?

Choose your Mac's system drive, usually named Macintosh HD, then click Erase. Select the Format option Mac Extended (Journaled) or APFS. Click Erase, confirm the action if prompted, and wait until formatting is complete. Next, close Disk Utility and click Reinstall macOS.

How do I restore a wiped MacBook?

Factory reset. You need to put your MacBook ($639 at Amazon) into Recovery Mode in order to erase all of your data and reinstall MacOS. To enter Recovery Mode on an Intel-based Mac, restart it and immediately press and hold Command-R. You can release the keys once you see the Apple logo.