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I have a Samsung Galaxy S II, which when connected to my Windows 7 computer acts as a "Portable Media Player"

GT-I9100 Portable Media Player

Whenever I try to copy a video onto the device, it prompts if I want to convert it, like so:

Do you want to convert <video> before it's copied to your device?

This gets quite annoying in the long run, so I'd like to disable it.

Is there a way to disable these prompts?

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1  
I think what I did with my N8 was connect it in mass storage mode so Windows would treat it as a standard flash drive. For the SII try Applications > Development > USB debugging. –  Bob Mar 18 '12 at 23:52
    
It is almost always faster and less problematic to connect these devices as "Mass Storage" if the syncing is not nessisary, When your just trying to copy files, and you know the files are formatted for the device. –  Psycogeek Mar 19 '12 at 1:36
    
@Bob: I don't believe I can do that since I've switched to Android 4. USB debugging is enabled, but it doesn't put it into mass storage mode as it did in 2.3.5, and it only lets me pick one of "Media Device (MTP)" or "Camera (PTP)" for connection mode. –  Sebastian Paaske Tørholm Mar 21 '12 at 12:57
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1 Answer

up vote 14 down vote accepted

Why this happens

That prompt is one of the features Windows implements for devices connected as MTP devices. The most sure way to disable it is to connect your Galaxy SII in USB Mass Storage mode. This way, Windows will detect it as a normal flash drive and will transfer files like any other flash drive without caring about the type. Some (desired) more advanced functionality may be lost, however.

The two basic ways to stop this from happening:

  • Connect the phone in Mass Storage mode.

  • Disable the shell extension on Windows that handles this. There are two ways to do this:

    • Unregister the .dll.

    • Disable the extension with ShellExView.


Option 1: Changing the phone connection mode

Enabling Mass Storage mode on Galaxy SII ICS (Android 4.x) (source):

  1. Bring up Settings.
  2. Click More… (under Wireless and network).
  3. Then select USB utilities ~ Set USB cable connection mode.
  4. Select Connect storage to PC then.
  5. Connect USB cable from phone to PC.
  6. Select Turn on USB storage. That’s all.

Option 2: Unregistering the .dll for the Windows shell extension that handles this

If you wish to keep using MTP mode for whatever reason, there has been a thread created on microsoft Answers specifically addressing disabling this prompt. Specifically:

Well, I previously couldn't find references to that dialog in any Windows 7 DLL file, so I thought that it wasn't Windows-related. But I have now looked again and found references to it in wpdshext.dll. So it does appear to be a standard Windows feature, my apologies.

I suggest that you try unregistering the DLL in question. Please open the Start Menu, go to All Programs - Accessories, right-click Command Prompt, and select Run as administrator. Then type the following command:

regsvr32 /u wpdshext.dll

You should probably restart after running the command.

I have not tried this method personally, and unregistering standard Windows DLLs may have unexpected consequences. If anything does go wrong, I recommend you start in Safe Mode and run regsvr32 wpdshext.dll in an elevated command prompt.


Disabling the shell extension

This method may be safer than unregistering a .dll.

  1. Download ShellExView

  2. Find the extension named Portable Devices Menu

  3. Right click > Disable Selected Items

  4. Restart your computer (to be safe)

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He didn't ask how to connect in MS mode, he asked how to disable the prompt. –  Mark May 19 '12 at 15:01
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@Mark Connecting in Mass Storage mode is a definite way to disable the prompt. In other words, he can transfer videos without the prompt, the desired result. This answers the question, albeit at the cost of other MTP functionality/advantages. I did mention that in the original answer. However, I did just dig up a source mentioning disabling the Convert dialog specifically while (presumably) keeping other MTP functionality, and have added that to the answer. –  Bob May 19 '12 at 15:54
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Now I can upvote your answer! Generally, the advantages of MTP (the major one being that the storage in question does not need to be unmounted from the device first) outweight the disadvantages. Only when the absolute highest speed is required is MS mode better. –  Mark May 19 '12 at 17:11
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I had a similar problem, with Windows asking whether I really wanted to copy my flac music to the phone. Unregistering wpdshext.dll did not solve the problem. By the way, my Galaxy Nexus running Android 4.0.4 only allows me to choose between MTP mode and PTP mode, there is no option to mount it as USB mass storage device. –  Ruud v A May 25 '12 at 18:02
    
@RuudvA Try ShellExView and make sure the "Portable Devices Menu" extension is disabled. As for your phone, you may have more luck asking how to enable Mass Storage Mode for a Galaxy Nexus on the Android.SE site. –  Bob May 26 '12 at 2:36
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