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Editing or Deleting Registry Keys (Reg Keys)

Issue

You need to edit or delete one or more of the Registry Keys (Reg Keys).

Important note: DO NOT edit or delete Reg Keys from your computer unless you are specifically instructed to do so by one of our Knowledge Base articles or technical support personnel.

Reg Keys are essentially folders that allow Windows applications to process data. On rare occasions, programs such as AutoCAD can become corrupted and require you to delete one or more of these folders. Some functions of our software may also require you to edit a Reg Key.

 

 

Solution

 

Open the Registry Editor

1. Open the Windows Run dialog box by pressing the CTRL + R keys (Windows keyboard) or Command + R keys (Mac keyboard).

 

 

2. In the Run dialog box, type Regedit and click OK.

 

 

 

 

Step 3. The Registry Editor dialog box will open.

 

 

The Reg Keys are located within the folders with names that begin with HKEY_ (as pictured to the right).

 

 

A Reg Key's name consists of its folder path within this folder structure.

 

 

Some of our troubleshooting articles will instruct you to edit or delete one or more Reg Keys. To locate a Reg Key, expand the first folder in that Reg Key's name (example: HKEY_LOCAL_MACHINE) by clicking the right-facing arrow to the left of that folder.

 

 

 

Step 4. Continue expanding folders to locate the Reg Key you need to edit or delete.

 

Edit a Reg Key

To edit a Reg Key, click the Reg Key folder to open it. In our example, we'll edit the Reg Key HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI\LANDFX by clicking the folder LANDFX in the path of the same name.

 

In the right pane, you'll see a list of files, or "strings," contained within the Reg Key you selected. Right-click the string you want to edit. Select Modify from the menu that opens. In our example, we'll edit the string SERVER.

 

 

 

In the Edit String dialog box, make your desired change in the Value data field. Click OK to save your change.

 

 

Delete a Reg Key

Before deleting a Reg Key, it's a good idea to back it up by exporting it. In this example, we'll show you how to export and delete the Reg Key named HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\AutoCAD 2015.

 

 

Right-click the Reg Key folder, and select Export from the menu that opens.

 

 

Navigate to the location where you want to back up the Reg Key, and click Save.

 

 

 

You'll now have a backed-up copy of the Reg Key, should you need it.

 

 

You can now delete the Reg Key safely.

 

 

To delete the Reg Key, right-click it and select Delete from the menu that opens.

Do not delete this particular Reg Key – or any Reg Key, for that matter – unless specifically instructed to do so. The Reg Key(s) you need to delete will depend on the issue you're experiencing with AutoCAD.

 
Last modified on Mar 12, 2018

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