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Windows 7: Album artwork of .m4a files do not appear in windows explorer

19 Mar 2012   #1

windows 7 ultimate x86 sp1
Album artwork of .m4a files do not appear in windows explorer

I have a huge collection of .m4a itunes plus music and mp3 recently a strange problem arised when i moved my whole music folder from one drive to other in smae hard disk.i dont think this caused this issue where my mp3 album artwork show fine but the artwork of .m4a files do not appear in windows explorer.

This is how some of them show when in folder view

But when i enter into the folder no artwork

i can see the artwork when playing in windows media player or any other music player

I tried this method and all options are perfect with no change

Try and delete you thumbnail cache,
Click the start button on your taskbar, type in the little explorer box, disk cleanup and hit the enter key,
Once windows completes, check the thumbnails section and temporary files sections, and click on okay,
Confirm Yes delete these files.
Reopen your music library,
Click on organize on the top left,
Go to the view section and uncheck the top box, always show icons and never thumbnails, click on the top Apply to folders button,
Then click on apply and okay.
Adjust the thumbnails sizes, hold the ctrl key and use your mouse wheel to increase there sizes.

These steps didn't work

and also tried this fix
If the problem is in shmedia.dll , then it’s time for some repairs.

1 – Download Shmedia.dll OR ( Direct Link )

2 – Extract and Copy Shmedia.dll to %windir%\system32\ (c:\windows\system32\ )

3 – start > cmd >R.Click>Run as administrator

4 – copy and paste these commands in order

shmedia.dll was missing so i downloaded it and registered by above method but still i cant get .m4a thumbnails working

i can see in registry where shell extension option is missing some of the file types HKEY_CLASSES_ROOT

is anything to do with this

help is appreciated Thank you

My System SpecsSystem Spec
19 Mar 2012   #2

Windows 7 Ultimate 64bit

Hi there.
you asked the same question on MY FORUM.

your answer is posted there.
My System SpecsSystem Spec
19 Mar 2012   #3

windows 7 ultimate x86 sp1

Thank you yea i didnt get any reply from some forums do posted in all where i have greter chance of getting an answer
My System SpecsSystem Spec

26 Jun 2012   #4

Home Premium 32bit
way to repair the files

Hello there,
Instances are there when our audio files gets corrupted, its ok if the file is available easily by using the backups, or by using the restoring process but what we have no back ups and no restoring point nothing to recover our data. Not to worry because there is one way to get the file in proper format that is by repairing it:). In order to repair mp4 music files you need to download the trail version software from internet. But as there are many versions on internet better to go with the trial version download link of the software .

My System SpecsSystem Spec
04 Nov 2015   #5

Windows 7 Ultimate 64 bit

I know this is old but did you ever solve it. I am getting the same issue exactly with m4a files. Strangely protected m4p songs have no such issue and display the thumbnail in explorer just fine
My System SpecsSystem Spec
06 Nov 2015   #6

Windows 7 Ultimate 64 bit

For benefit of others. I downloaded trial version of DbPowerAmp which seemed to restore the thumbnails. Clearing the thumbnail cache did not work.
My System SpecsSystem Spec

 Album artwork of .m4a files do not appear in windows explorer

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