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kevinbarre Author

Level 1

49 points

Skip "Verifying [file name]" in High Sierra?

After upgrading to High Sierra, the system throws up what looks like a FileVault icon along with the words, "Verifying [file name]" before playing back any downloaded video files. This verification can take as many as a few minutes to occur before the app (in this case, VLC) can play back the file. It happens each time the file is opened, not just the first time. I can find no setting in Security & Privacy that will disable this process.

This makes playback of videos nearly impossible.

This is happening on both a Mac Mini (late 2012) and an iMac (late 2015 5k), both with High Sierra. The verification was not happening with either machine under Sierra. The files are on drives that have been converted to APFS.

Mac mini, macOS High Sierra (10.13), null

Posted on Sep 30, 2017 7:45 AM

Top-ranking reply

SilvanSwiss

Level 1

8 points

Posted on Oct 14, 2017 12:01 PM

Solution: https://forums.macrumors.com/threads/osx-10-12-4-beta-verifying-dialog-on-openin g-any-movie-zip-files.2030204/

This has existed since January, noone at Apple cares. Solution above worked for me.

Command:

xattr -d com.apple.quarantine "foobar.mp4"

Then open file

View in context

28 replies

Feb 11, 2018 6:37 AM in response to kevinbarre

I am having this problem with ALL files, seriously slowing my iMac with 24GB of Ram - so it's not the system it's the bug. Any idea when Apple is going to fix this? I have clients that are basically freezing because of this Verify problem as well.

da250

Level 1

9 points

Oct 11, 2017 8:47 PM in response to kevinbarre

I found this:

Run the following command in terminal window:

defaults write com.apple.LaunchServices LSQuarantine -bool NO

then restart computer.

worked for me.

ron App

Level 1

53 points

Sep 30, 2017 10:32 AM in response to kevinbarre

Happens to everybody except Apple testers because they don't have large enough files to notice the message.

Oct 11, 2017 11:56 PM in response to da250

@da250 but this is bad. It turns off this security feature system wide which is there to protect you against downloaded malware. It's better to wait Apple to fix this on the next updates.

Andystep

Level 1

19 points

Oct 14, 2017 10:42 AM in response to dbloyd

Nope - changing this didn't work for me. Very annoying indeed.

Oct 14, 2017 11:57 AM in response to Andystep

Have the same problem. 4GB mp4 file on my timecapsule with vlc, stopped trying after 20 mins. My god so annoying.

Oct 17, 2017 3:40 PM in response to kevinbarre

This worked for me as well. Thank you.

kevinbarre Author

Level 1

49 points

Oct 23, 2017 8:12 AM in response to Daniel Lahoz

This is a good workaround until they fix the problem!

Oct 25, 2017 5:15 PM in response to dgc2

here are the parameters to remove that attribute on an entire directory of files all at once:

find /path/to/my/directory -type f -exec xattr -d com.apple.quarantine {} \;

i hope this helps someone.

Nov 2, 2017 8:32 AM in response to kevinbarre

I guess with the newest update 10.13.1 this "verifying..." went away. I just tried opening .mp4, .mkv files and no more waiting.

Critifur

Level 1

9 points

Nov 2, 2017 10:21 AM in response to kevinbarre

The newest update 10.13.1 as of last night seems to have rectified this issue. Man that was annoying. I was just about to revert to Sierra.

Jan 6, 2018 1:22 PM in response to leonyan938

Thank you so much. I just disable real time scanning before I want to use media files and all is well. Then re-enable again after. Hope they come up with an update solution soon.

Feb 11, 2018 6:39 AM in response to leonyan938

It clearly is not another program causing the problem it is High Sierra bug - it MAY be conflicting with other programs, but it is not a single program that is causing this.

Skip "Verifying [file name]" in High Sierra?