Questions tagged [filevault]

FileVault is a macOS feature allowing full-disk encryption using XTS-AES-128 with a 256-bit key. Older implementations encrypted the user folder only.

Filter by
Sorted by
Tagged with
131 votes
19 answers
111k views

How can I figure out what's slowly eating my drive space?

Every few days I get notices on my MacBook that it's running or run out of hard drive space. Curiously, restarting the computer will enable me to recover gigabytes of space (this past time, it was ...
Kyle Cronin's user avatar
  • 23.2k
22 votes
2 answers
9k views

Data Not Backed Up, Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I was trying to install Linux on my MacBook for class when I bricked my computer, which now in an unbootable state. I made my partition too small, so I was going to delete and create a larger one. ...
HalfwayThere's user avatar
5 votes
1 answer
15k views

Partition type suddenly FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF, drive unmountable

I have two drives inside my MBP, an SSD for the OS and the original HDD for large Data. The HDD has 3 Partitions: My Data (Core Storage volume) 20Gb for Linux 4Gb for Linux Swap Recently I ran ...
oarfish's user avatar
  • 1,970
17 votes
16 answers
3k views

Apart from being able to encypt an entire volume, what are the other differences of FileVault 2 over FileVault?

Does FileVault 2 in Lion have any other differences compared to the old version, FileVault in previous releases of the system? Are there any additional benefits to using the new version?
Aron Rotteveel's user avatar
86 votes
3 answers
153k views

Does FileVault encryption slow read/write access on an SSD?

Never fancied enabling FileVault on previous Macs but now I'm running OS X on an SSD. Is there a noticeable decrease in speed?
Rob Fisher's user avatar
8 votes
4 answers
16k views

How to recreate Lion Recovery HD partition?

I have a Macbook Air Mid 2011 which came pre-installed with Lion. After a trackpad hardware problem I wanted to be sure that none of my programs was responsible for the problem. I booted into the ...
kvDennis's user avatar
2 votes
2 answers
386 views

MacBook Pro 2012 - black screen after flat battery

After working perfectly whilst never being allowed to run completely flat, booting after a flat battery, even after fully recharging, doesn't switch the backlight on. This means the user cannot see ...
Tetsujin's user avatar
  • 116k
80 votes
12 answers
96k views

How to view progress when encrypting a disk?

Mountain Lion allows one to encrypt any disk by right-clicking on the disk in the Finder and selecting Encrypt from the contextual menu. Is there anyway to check on the progress of this encryption ...
ericg's user avatar
  • 1,608
19 votes
10 answers
88k views

FileVault Stuck on Pause

I just got a new 13" rMBP with Yosemite installed. I chose to enable FileVault when I set the machine up. Now, several days later, an app called "Reverting from FileVault" shows on the list of apps ...
Peter's user avatar
  • 384
3 votes
2 answers
2k views

Automatically Mount Encrypted Core Storage Volume (10.14.4+)

Prior to Mojave 10.14.4, macOS would automatically attempt to mount locked Core Storage volumes, and if the necessary password was found in the current user's keychain this would occur automatically. ...
Haravikk's user avatar
  • 1,605
33 votes
4 answers
79k views

Change OSX encryption filevault password to match login pass

When I first setup my OSX laptop, my filevault and user login password were the same. At bootup, I only had to login once (with my username and password). I recently changed my OSX password but my ...
Scott Summers's user avatar
31 votes
5 answers
29k views

Disable a user's ability to unlock a FileVault 2 volume at startup/login time

I recently performed a clean install of Lion on one of my Macs. The installation process created one administrative user account. After installation, I enabled FileVault for the entire disk. Then, I ...
kccricket's user avatar
  • 739
15 votes
7 answers
131k views

MacBook startup problems - mouse and keyboard not working at login / stuck on apple logo

Today I restarted my Mac after several weeks uptime. After restart, I got the login screen with unresponsive keyboard and mouse. Right before this problem I had Aperture open, with a problematic ...
SPRBRN's user avatar
  • 1,240
13 votes
1 answer
16k views

Does Windows or Linux have any tools for accessing a FileVault2 encrypted drive's contents?

I'm looking to mount (and access files on) my FileVault2 encrypted drive on a non-OS X box, and am wondering if anyone has done this with Windows or Linux.
Dolan Antenucci's user avatar
11 votes
2 answers
14k views

Is File Vault 2 whole disk encryption or whole partition encryption?

Can I use File Vault to encrypt only some of the partitions on my disk (so that I can still have unencrypted and Windows partitions on the same disk), or does File Vault encrypt the whole disk so that ...
Thilo's user avatar
  • 5,508
8 votes
1 answer
4k views

Is the Guest account a security risk with full disk encryption on Mountain Lion?

I have File Vault 2 full-disk encryption enabled on my 2012 MacBook Air running Mountain Lion. By default it also has a "Guest" Safari-only account available. I just tried it the other day and found ...
Mark Adler's user avatar
6 votes
4 answers
5k views

Guest login got enabled even though FileVault 2 is enabled and Guest login is disabled

I rebooted my Mac yesterday after installing the Apple update TS4088. Even though I disabled Guest Logins in my Users Preferences and have enabled FileVault 2 since the start, I am able to see Guest ...
Sairam's user avatar
  • 5,736
3 votes
2 answers
2k views

How (in)vulnerable is OS X to encryption ransomware?

These days, malicious software seems to be infecting Windows computers, encrypting their data against their will, and asking for a Bitcoin ransom in exchange for the encryption key. In order for such ...
Fiksdal's user avatar
  • 672
1 vote
1 answer
5k views

How to turn off “macOS MDM Enrollment”

I have a MacBook Pro that I bought on eBay. There’s an annoying message that pops up every few minutes “macOS MDM Enrollment” is the title. I’ve tried several different methods posted on this site to ...
Curtis Weller's user avatar
1 vote
1 answer
331 views

Find and decode bytes containing passphrase hint (CryptoUsers structure) in FileVault Drive Encryption of HFS+ encrypted drive

I had a Mac computer running macOS 10.14.6 (I believe) and set up a Time Machine backup with encryption on a hard drive. It is encrypted with HFS+ with a password and a hint. The password was stored ...
emonigma's user avatar
  • 1,047
49 votes
5 answers
138k views

Why does OS X show a forgot password prompt when trying to boot or wakeup screen?

Something came up today that bugged me a bit, I left my laptop on battery power before going to bed. When starting it up the battery was dead. I plugged it in, and here is what happened: The startup ...
tar's user avatar
  • 499
32 votes
1 answer
164k views

User account doesn't appear on first login screen

After restarting my computer when I am presented with the initial login screen (the light gray one with the restart and shut down buttons), I see only two of my three user accounts. If I log in with ...
Senseful's user avatar
  • 23.9k
25 votes
4 answers
8k views

How do I get the password hint for an encrypted disk?

I created an encrypted disk on a USB drive the other day, and added a password hint. I don't remember what the password is. (I have a scheme for mapping hints to passwords, so when there's a hint ...
Tom Seddon's user avatar
22 votes
4 answers
9k views

Headless Mac mini: Share Screen + FileVault

At the office we have a Mac mini that will be used to run a Teamcity agent. It is a requirement from our security department that we enable FileVault on this machine. I will also need to manage ...
spg's user avatar
  • 321
20 votes
3 answers
10k views

How can I verify a Lion FileVault recovery key?

I have a volume that is encrypted with OS X Lion's full-disk FileVault. When I enabled FileVault I was given a recovery key, which I wrote down. I'd like to verify that the recovery key that I wrote ...
acm's user avatar
  • 297
16 votes
2 answers
6k views

What user behavior is necessary to make Filevault 2 maximally secure?

Situation: Filevault 2 passwords can be stolen Passware has released the Passware Kit Forensic 11.3 which is able to steal the FileVault 2 password from the RAM by performing a DMA Attack via the ...
gentmatt's user avatar
  • 49.7k
15 votes
2 answers
27k views

Can you reinstall OS X on a FileVault 2-encrypted drive?

I've been researching FileVault 2 to make sure that I understand it before I enable it on my Mac. While reading Macworld's Complete guide to FileVault 2 in Lion, I encountered an unexpected caveat (...
Evan Kroske's user avatar
  • 2,047
8 votes
1 answer
3k views

Unable to create Guest Account after enabling FileVault

After upgrading to Lion, I tried creating a guest account and it worked. I enabled FileVault on Lion and went through the process of encryption. After that, when I am trying to create a Guest account,...
Sairam's user avatar
  • 5,736
8 votes
2 answers
7k views

FileVault optimizing... 43 days remaining

My FileVault says that I have to wait for 43 days for it to finish optimizing something. As soon as I launch any application it stops working. So the only time that I can dedicate for the FileVault to ...
Lu4's user avatar
  • 151
8 votes
3 answers
4k views

Speed of old Filevault vs. new Lion full disk encryption

How do the old Filevault and the new Lion full disk encryption compare speed wise? ATM I am using Snow Leppard with FileVault to encrypt my whole home directory, which makes opening IPhoto, Chrome or ...
Framester's user avatar
  • 238
7 votes
2 answers
4k views

Does FileVault encrypt the disk instantly?

I have recently found that FileVault is disabled on my machine. Although I remember that I set "encrypt" option when I was setting the machine up. I opened System Preferences and enabled FileVault. ...
Sasha Shpota's user avatar
7 votes
1 answer
14k views

How do I set up a Mac to use both FileVault and Boot Camp?

I understand FileVault will encrypt the volume Mac OS X is installed on. I guess this means that Windows won't be able to read it. How can I set up a MacBook to use FileVault for the Mac OS X ...
Andrew J. Brehm's user avatar
7 votes
2 answers
1k views

Error recovering MacBook login password: “There was an error communicating with iCloud”

I forgot my Apple MacBook Pro M2 password yesterday (running on MacOS Sonama) and after multiple tries, I tried to recover using recovery options provided by apple. After following all the steps ...
Michel Gokan Khan's user avatar
7 votes
4 answers
6k views

Grey login screen after enabling encryption

After turning on encryption with FileVault on my MacBook Air with Mountain Lion my login screen went gray. Is there a way to go back to the default one? The grey one The default one
norq's user avatar
  • 526
6 votes
2 answers
2k views

How can I get Time Machine to back up the contents of a FileVault while logged in?

Disclaimer: this question and answer are targeted to the Snow Leopard implementation of FileVault where the user home folder is only encrypted in a bundle. Lion's implementation of FileVault doesn't ...
Kyle Cronin's user avatar
  • 23.2k
6 votes
2 answers
22k views

How long will FileVault encryption take? Can I stop it?

I enabled FileVault to encrypt my hard drive a few days ago. The encryption process is still not finished and the estimated time keeps changing. It's been anything between "4 days" and "300 days". The ...
Anna's user avatar
  • 61
6 votes
1 answer
2k views

Switch from sleep to hibernate after set time

Is there a way to set a MacBook Pro (10.8.2) to go into normal sleep when I close the case but then switch to hibernation after, say, 15 minutes? It's clearly capable of going from sleep to hibernate ...
octern's user avatar
  • 1,123
5 votes
2 answers
34k views

How do I stop FileVault's decryption?

I accidentally turned off FileVault on my MacBook when trying to allow downloaded Canon driver software to be opened. FileVault is currently decrypting and I want to stop it as soon as possible. How ...
ms. markey's user avatar
5 votes
1 answer
8k views

Encrypt external HDD without erasing data?

I'm running Filevault on my internal hard drive, but I realized that I never encrypted my external drive. Currently it's running Mac OS Extended (Journaled) and I'm not seeing any encrypt options ...
Joseph Toronto's user avatar
5 votes
2 answers
1k views

FileVault 2 encrypted disks with my home directory on a different drive

I have multiple volumes on my mac and I just enabled encryption on the other drives. My home folder is stored on one of those drives. Now I can't login because it can't see my home directory, but if I ...
Joshua Olson's user avatar
4 votes
3 answers
29k views

How do I mount my FileVault 2-encrypted volume?

I have a Lion 10.7.2 system (on MacBook Air 13" 2011) which doesn't boot anymore after a restart. My HD is encrypted with FileVault 2, and after I click on my username and enter my password, it ...
Dan's user avatar
  • 143
3 votes
1 answer
3k views

How can I have one password for FileValue 2 (pre-boot password) and another for my user login?

I know this is possible. When I first installed Mavericks, I set up a default password of "password". I then enabled Filevault 2. At some point I then changed my password from "password" to my ...
Adam's user avatar
  • 31
2 votes
1 answer
4k views

Password incorrect after enabling FileVault

I use FileVault to encrypt all my disks. Lately I had problems restarting my MacBook. After restart, the keyboard and mouse froze at login, making it impossible to login or do anything. It appeared ...
SPRBRN's user avatar
  • 1,240
1 vote
1 answer
2k views

How to make M1 Macbook (Pro 2021) useless if lost / stolen?

What are risks specifically for an Apple Silicon device? What can I do to make them less critical? If prepared properly, what shoud I do after my Mac is lost / stolen? Here is my homework research so ...
yurkennis's user avatar
  • 1,531
1 vote
1 answer
183 views

Time Machine + FileVault on Lion or Mountain

If I stop the backup it says: "now encrypting...", is the data saved "not encrypted" before being encrypted? Can I make it "always encrypted"? Non-encrypted transfers are a problem for me.
Robottinosino's user avatar
0 votes
1 answer
7k views

Can I enable FileVault and then partition my hard drive later?

I just bought a 2014 MacBook Pro with a 512GB SSD. I updated to El Capitan today and when it booted up for the first time, it asked me if I wanted to enable FileVault. I chose not to because I wasn't ...
sixstring's user avatar
  • 145
0 votes
1 answer
195 views

FileVault users who are unable to delete files by shell command from Terminal Recovery Mode, here's what to do [closed]

This solution applies to FileVault users who are unable to modify permissions of pesky directories (file folders) or files themselves, in order to delete them. Working with Terminal while in Recovery ...
Ryan's user avatar
  • 175
0 votes
3 answers
4k views

Can't Enable Filevault because Recovery Partition Missing

I'm trying to enable FileVault for my home directory on my Macbook, but every time I try it tells me it can't because the Recovery Partition is missing. however, if I drop to a terminal and run "...
Yeraze's user avatar
  • 193
211 votes
8 answers
96k views

I included emoji in my password and now I can't log in to my Account on Yosemite

I wanted to check if it's possible to use emoji in a password for my Account on OS Yosemite. It worked but I didn't realize that the login screen has only native keyboards, so I can't type emoji there....
Artiom Dashisnky's user avatar
23 votes
2 answers
40k views

With File Vault ON are time machine backups encrypted?

I have been using time machine to back up to a wireless external drive since I got my mac. Today I used filevault to encrypt my hard drive. Will this affect how Time Machine backs up my files? Will ...
user20236's user avatar
  • 981