Able to edit Win7 registry but changes do not take effect

June 7, 2012 at 13:04:40
Specs: Windows 7

This is actually a follow-up to my earlier post (see above) concerning my Windows 7 inability to eject my Huawei usb modems. In short I have been getting the error message that the device is not removable and cannot be ejected. Trying to separately eject the MMC memory gives a similar response.

Finally I found an apparent registry fix.

I think that the fix is valid but after editing the registry and restarting I do not get results. The edit information is on a CNET video and the procedure is a straightforard stepping down through the registry tree, creating a new key inside of a 'usbhub' folder and setting the value of the new parameter from its default of "0" to "1". The tutorial is available here:

Most user responses were enthusiastic thank you's and only one "It didn't work." The only suggestion I have found is that it may be that Virtual Machine is running and that it sometimes will not apply registry edits. I do not even know whether Virtual Machine is installed on my computer and have not found a way to check. New suggestions will be greatly appreciated.

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June 7, 2012 at 14:14:07
A modem is not a storage device and therefore you do not need to use the "safely remove hardware" or "eject" utility in Windows. It only applies to USB storage devices like pen-drives or external hard drives which Windows writes to or reads from.

For a memory card, just try logging off then logging on again. That will usually relinquish Windows' hold on it.

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June 7, 2012 at 15:44:47
XP is supposed to just allow you to unplug usb devices in the same way. It is suppose to not matter. Only some drive where one may have set some settings could there be some write deal issue.

A hold on some usb might indicate some file open. Normally that isn't much of a deal but some virus's do that.

Hang up and live.

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June 7, 2012 at 18:06:40
Some modems take a miniature SD card which causes them to show as a storage device in the "Safely Remove" icon on the task bar. I have a 4gig card in mine and it always shows there.

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June 15, 2012 at 01:58:58
Thanks All for the responses,

I know that a modem is not a storage device and am not convinced that Safely Remove is not advisable. A lot of people say that it is not necessary but I believe that they are quoting popular "tech dogma" rather than having true knowledge on the subject. The manufacturer warns that not performing the action can shorten life of the product. The popular downloadable utility "USB Safely Remove" indicates that the MMC and modem of the composite device should be removed.

Please!!! I am not interested in debating wheather or not Safely Remove is necessary. My Win7 with SP1 is supposed to display the memory and modem under the "Safely Remove Hardware and Eject Media" icon and allow me to safely remove/eject them. It is not doing this. It only displays "CD Drive (F:) Mobile Broadband" and then will not remove/eject it. The MMC is shown as (G:) in Windows Explorer but not even listed in the icon remove/eject list. It shoud be there. In Device Manager: Properties-Polices will not allow disabling of the MMC memory caching and says that it must be safely removed.

My object in this post is to make this Safely Remove in my Win7 native software work properly.

Thank you! Thank you! Thank you!

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June 15, 2012 at 05:08:09
Look at these:
In my experiences, non-storage devices do not appear in Safely Remove Hardware and removing them does not have any effect on them or the system that I have ever found (Windows 2000,XP, Mac's & Windows 7) - home and at work.

You have to be a little bit crazy to keep you from going insane.

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