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“Verifying” upon opening every file

This is a fix I saw on another forum, I have not tried it myself as I already went back to Sierra but perhaps it will work for some of you :)

Type this into Terminal. I just did and restarted, fixed. defaults write com.apple.LaunchServices LSQuarantine -bool NO
Click to expand...
 
I think this command will turn off Gatekeeper and I don’t want this but thanks for the sharing :)
 
sys-alchemist said:
1.) Open Automator. It should be in your "Applications" folder. Or hit Command+Spacebar and type automator to find it using Spotlight.

2.) Select "Service":
View attachment 721685

3.) Select "Run AppleScript" from the column of available actions. Drag "Run AppleScript" to the right empty pane to begin.

View attachment 721686

4.) Make sure "files or folders" is selected for "Service receives selected". Make sure "Finder" is selected for "in". Paste dolphin842's code in the empty text area shown in the screenshot below (I added "-r" so this is recursive):

Code: 
on run {input, parameters}
    tell application "Terminal"
        activate
        set filesString to ""
        repeat with file_ in input
            set filesString to filesString & " " & quoted form of (POSIX path of file_)
        end repeat
        do script "xattr -r -d com.apple.quarantine" & filesString
    end tell
    return input
end run


View attachment 721687

4.) Choose File -> Save...

5.) Choose an appropriate name. I chose "Unquarantine" for now.

6.) Select all of the files you want to fix, and right click. You'll see your new service at the bottom of the right click dialog as a selection:

View attachment 721689

7.) Click "Unquarantine" (or whatever you named it) and it will modify all of the selected files, including files within selected folders.

8.) Quit Terminal after the process finishes and you're returned to the default prompt.

Thanks to dolphin842 and everyone else who helped!
Click to expand...

I did this. While it does remove the verifying alert, the videos however take just as long to open for me - they hang with a blank white background for basically just as long as the previous verifying already took to go away before video will play.

I updated to the 2nd beta and still does it for me.
 
Quu said:
This is a fix I saw on another forum, I have not tried it myself as I already went back to Sierra but perhaps it will work for some of you :)
Click to expand...

It does work (at least for me).

But it’s nice to see Apple has apparently fixed this in the latest beta, so I’ll go back to the default setting before the update and see what happens...
 
Apple support was utterly useless when it came to this issue. I am glad I found this MacRumors support thread. It feels good that I am not the only one. I've tried everything but a fresh installation, and I am hoping that the next 'stable' build that we're getting (soon) will address this issue indeed. And that the latest (public) beta isn't just a darn lucky one off miracle fix.

I have tested this on old and newly downloaded files from various sources, and they were all working. I have just an issue with a couple .. for no reason whatsoever. Quite frustrating indeed and slowly down file editing and video editing etc.
 
Floris said:
Apple support was utterly useless when it came to this issue. I am glad I found this MacRumors support thread. It feels good that I am not the only one. I've tried everything but a fresh installation, and I am hoping that the next 'stable' build that we're getting (soon) will address this issue indeed. And that the latest (public) beta isn't just a darn lucky one off miracle fix.

I have tested this on old and newly downloaded files from various sources, and they were all working. I have just an issue with a couple .. for no reason whatsoever. Quite frustrating indeed and slowly down file editing and video editing etc.
Click to expand...
Consider yourself lucky if it just happens in some video files because in my case it happens on all videos I have. It can be directly on computer HDD, external HDD, videos saved before upgrade, after upgrade, downloaded videos, airdrop videos, all of them have the verifying issue after upgrading to high sierra.

I really hope 10.13.1 will fix this.
 
I tried another apple support channel, .. i got ignored again, no answer was provided to try and figure out what's up.

Sorry to hear some people have it on all their files.
 
With 10.13.1 released today is the problem persist for you guys? I’ll update later tonight
 
I updated to 10.13.1 and I can confirm the problem is officially fixed for me as well!!

Now High Sierra runs as smooth a Sierra was finally. Lesson learned for next year. I'll wait at least until the .1 update before I install the new macOS.
 
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SoYoung said:
I updated to 10.13.1 and I can confirm the problem is officially fixed for me as well!!

Now High Sierra runs as smooth a Sierra was finally. Lesson learned for next year. I'll wait at least until the .1 update before I install the new macOS.
Click to expand...

Appears fixed for me too!
 
DOES NOT appear fixed for me. I have custom icons on my mp4 files. For whatever reason the cache or whatever takes 20 minutes each time a folder is opened to show the icons. Otherwise its the generic quicktime icon. SO... when I click on a mp4 that the custom icon shows it opens fine. Slow still but fine otherwise. IF I click on a mp4 that has not loaded the custom icon the mp4 opens white and each takes over 60 seconds to show the mp4 controls and playable. No verifying alert either way but still broke. Mind you this is on external drives. Mp4s on startup drive work fine.
 
PicnicTutorials said:
DOES NOT appear fixed for me. I have custom icons on my mp4 files. For whatever reason the cache or whatever takes 20 minutes each time a folder is opened to show the icons. Otherwise its the generic quicktime icon. SO... when I click on a mp4 that the custom icon shows it opens fine. Slow still but fine otherwise. IF I click on a mp4 that has not loaded the custom icon the mp4 opens white and each takes over 60 seconds to show the mp4 controls and playable. No verifying alert either way but still broke. Mind you this is on external drives. Mp4s on startup drive work fine.
Click to expand...
I feel sorry for you but it’s a whole different problem. Maybe making a new thread to see if anyone else have the same issue as you.
 
The handful of files in question for me I had to already process them. I didn't upgrade before we did that. So I can't confirm it being fixed, but on the other hand: nothing new appeared ..

one thing i did notice is that if we have 450gb free space, and delete two media files of 50 and 80 gb .. and then empty the trash, that finder doesn't 'update'. The 'free space' is still 450. It can take up to a few hours for finder to suddenly say: oh btw, you have 580gb free space now.

I don't know if this is because i am using time machine and it's part of a local snapshot or something, but i have never seen it do that prior to high sierra, and i can reproduce it (because i tested it hehe)

anyway, no file verification stuff so far..
 
10.13.1 fixes the issue for me. File still have the quarantine xattr applied after opening, but re-opening no longer encounters the 'verifying' process.
 
I solved it by running on Terminal de following:


xattr -d -r com.apple.quarantine ~/Downloads

I had a .rar file I could not open without the Verifying message. I drop this .rar file in the Downloads folder, I tried to open it, and it worked!. Hope this helps.
 
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