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Wrong name associated with folder "type"... (acpConvert)

Posted on 2006-07-23
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Last Modified: 2012-05-05
I think this was caused by a piece of media software that I've subsequently uninstalled but the residual is that the type column in all folders indicates "acpConvert" for all and every folder. How do I change it back to "Folder" ??! I'm guessing there's a registry edit I can do?

Cheers experts.
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Question by:jl202
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BillDL earned 250 total points
ID: 17163020
Yes, the registry stores this value, although you can first try the following from Windows Explorer or My Computer before using Regedit:

1. Tools Menu > Folder Options > File Types tab
2. Select "Folder" from list and then click the "Advanced" button
3. In the top field of the "Edit File Type" dialog (between the folder icon and the "change icon" button) you will probably see "acpConvert" instead of the proper "Folder" value.
4. Usually this is deliberately greyed out and unavailable.  If it IS available (white), then you might be able to edit it directly in that field and "OK" your way back to the "Apply" button to set the change before reboot.
5. If it IS geyed out, then you will have to use Regedit.
6. Before closing the Folder Options > File Types dialog, also check that "File Folder" and "Drive" appear correctly.

To correct this in REGEDIT, (Start Menu > Run > and type REGEDIT > click OK), do as follows:

1. Navigate in the LEFT pane down to the key  HKEY_CLASSES_ROOT\Folder   and click on it
2. In the RIGHT pane, at the top, you will no doubt be seeing the following:
    (Default)       REG_SZ      acpConvert
3. Double-Click (Or Right-Click > "Modify") on "Default"
4. Change "acpConvert" in the "Value Data" Field to "Folder" and click OK
5. Navigate to:
   HKEY_CLASSES_ROOT\Directory
   HKEY_CLASSES_ROOT\Drive
   and do the same if "File Folder" and "Drive" (respectively) are affected.

If that is the only thing affected, then those actions should solve the problem.  If any of the default actions, like "Find" and "Explore" have been left damaged, then I will post the text for you to create a *.REG file which will restore the default actions.
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by:BillDL
ID: 17163036
In case you are wondering about the differences between:

(Default)       REG_SZ      Folder:
HKEY_CLASSES_ROOT\Folder

(Default)       REG_SZ      File Folder:
HKEY_CLASSES_ROOT\Directory

Most standard folders will show the type as "File Folder", whereas some System or User Shell folders created by Windows will be set as "Folder".  Additionally, "logical drives" on a single hard drive will show as "File Folder", whereas only fixed drives and cd-rom drives will be treated as drives (although they may not show simply as "Drive").  There are other registry entries for different "file types" that show their own descriptions in Windows Explorer such as "Control Panel" showing as "System Folder".
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by:jl202
ID: 17166053
Thanks! I'll give this a try when I get the chance,

Rgds.
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by:BillDL
ID: 17167773
Just for your information, you aren't alone.  Here's a forum question from someone with exactly the same problem, bu8t who assumed that it was caused by a "Acoustica" software, whereas it turned out to be "Audio Converter Pro" that had caused the problem.
http://demon.acoustica.com/bbs/viewtopic.php?p=1107&sid=f73ac5f65a6b7adfe5b781926d80ffe9

Same problem with screenshots here:
http://forums.techguy.org/windows-nt-2000-xp/458460-folder-problem.html
although I DON'T recommend the final suggestion.
From the screenshot of the "File Types" dialog, it is quite clear that only the "File Folder" has been set with the name "acpConvert".
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Author Comment

by:jl202
ID: 17168064
:-) I think I saw those as I googled for acpConvert.. when I looked however there wasn't a solution available yet lol. Also, the fact there were so few google answers  (3) meant it seemed an uncommon problem so I felt better about asking an expert!!!
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by:BillDL
ID: 17173560
Yeah, agreed.  You do get some real idiotic suggestions in most OTHER discussion and help forums ;-)

Just to reiterate.
From the evidence shown in the screenshots in that 2nd linked page, the "file type" that has been renamed to acpConvert is "File Folder", NOT "Folder".

So try first to RENAME (ie. overtype) acpConvert to File Folder in the Folder Options > File Types tab.  As I said though, it will most likely be greyed out and inaccessible.

That being the case, instead navigate in Regedit to the [HKEY_CLASSES_ROOT\Directory] key and select it, from  where you should be able to rename (ie. double/right-click > "modify") the [Default] value from acpConvert to File Folder in the right-hand pane.
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by:jl202
ID: 17206994
Cheers dude! Sorry it took a while to get back but I only really get time to mess with the home pc at the weekend ;-)

It was the Directory key (?) that was corrupted so I changed it back to folder and all is well again :-)

Do you know any good registry-understanding books out there or is all this going to go the way of the dinosaurs once Vista is about?
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by:BillDL
ID: 17208371
Thank you, jl202
You don't really need books to understand how the registry works when you have so much free information online ;-)
The difficulty, of course, is finding trusted and comprehensive resources online.

One site that you will find frequently quoted on experts-exchange is http://www.winguides.com/
It contains LOADS of registry modifications that are logically arranged into groups, although many of the links are also cross-referenced to other "related" areas.  The "Search" function DOES work very well, but can throw up a lot of finds that you have to go through.  To make it easy, the key words will be highlighted.

Although I haven't used any of the utilities shown in the images at the top of the above page (http://www.winguides.com/), I am led to believe that they are pretty good.
Instead, go to the links below the utilities ie. the "GUIDES" section.

The "Gain Registry Insight" links (http://www.winguides.com/registry/showcase.php) really just relate information back to their utilities again.  Worth reading, but really just advertising their products.

The "Driver Guide for Windows" provides a lot of links to manufacturer sites, although we all know how they can chop and change so often, so there may be a few dead links.

Open "The Registry Guide" link (http://www.winguides.com/registry/) and you will see a link in the small pane at the left side of the page named "Registry Tutorial" (http://www.winguides.com/article.php?id=1&guide=registry).  It isn't as up-to-date as most of the rest of the site, but it comprises several pages that explain quite well how the registry is stored and what types of "values" are stored in it.

You can download "The Registry Guide 2003" to use as an offline Windows Help file from the following link:
http://www.winguides.com/downloads/registry.exe
Right-Click the link and choose "Save TARGET As". (1.37 MB)
That's the installer file.  After installing it, find "registry.CHM" and copy it to another folder, then uninstall The Registry Guide and you have a fully searchable version of Winguides online "registry guide" as it existed in 2003 and includes registry modifications for Windows 9x, NT, 2000, and XP.  It also includes a useful section covering configuration files including Windows XP's "Boot.ini" file (as here: http://www.winguides.com/registry/category.php/20/).

I suggest using http://www.google.com and search the following example key phrases:
"understanding windows registry"
"windows registry explained"
To target Windows 98 or XP in the results, just add "98" or "xp" to the search words and you'll get a lot of useful sites.

Here's a good single-page run through with good links at the bottom of the page:
http://www.tech-pro.net/intro_reg.html

How to back up, edit, and restore the registry in Windows XP and Windows Server 2003:
http://support.microsoft.com/default.aspx?kbid=322756

How to recover from a corrupted registry that prevents Windows XP from starting:
http://support.microsoft.com/?kbid=307545

Description of the Microsoft Windows registry:
http://support.microsoft.com/kb/256986/EN-US/

How To Use the Windows XP and Windows Server 2003 Registry Editor Features:
http://support.microsoft.com/default.aspx?scid=kb;en-us;310426

How to add, modify, or delete registry subkeys and values by using a registration entries (.reg) file:
http://support.microsoft.com/default.aspx?scid=kb;en-us;310516

To Tweak or Not to Tweak - Windows XP Myths:
http://mywebpages.comcast.net/SupportCD/XPMyths.html

This one looks like a good book:
Windows XP Registry Guide by Jerry Honeycutt
http://safari.oreilly.com/0735617880

Windows Registry Guide, Second Edition (XP and 2003):
http://tinyurl.com/qmup6

Do a search of http://www.amazon.com using the word "registry" and see what books show.
Also check technical publishers' sites like http://www.samspublishing.com/index.asp

Microsoft Press "Inside Out" series:
http://www.amazon.com/gp/feature.html/103-3081553-0809401?docId=980301

Dinosaurs once Vista is about?
Unable to answer that, because I won't be buying it.  I will revert to Linux for everything before I spend more money on another operating system that will be superseded by yet another before they have even fixed up the problems with the last two.  You'll note that most of my contributions in experts-exchange are in the Windows 98 topic area (http://www.experts-exchange.com/M_897440.html).

Cheers dude ;-)
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by:jl202
ID: 17214006
Thanks for the info :-)) Also thinking Linux is the way to go... so long as you can find the right drivers!!!
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