If Outlook Express will not start, move the *.dbx files from your store folder and into a new empty folder.

1. Download this small script that will open the store folder of the currently logged-on Identity. Alternatively you can find it be searching in Windows Explorer for files named *.dbx. Be sure to include hidden files in your search, as OE user files are marked as hidden by default. To view hidden files:
   • In Windows Explorer, click Tools| Folder Options then click theView tab.
   • Click the button for Show hidden files and folders.
2. On your desktop, right-click and point to New| Folder.
3. In the store folder window, click Edit| Select All, or press CTRL-A.
4. Drag the selected files and drop them into the New Folder on your desktop.

Try opening OE again. If it starts without error, try importing your mail folders.

1. Click File| Import| Messages| Microsoft Outlook Express 6.
2. Select Import from a store folder and click Browse.
3. Navigate to the New Folder on the Desktop.

If OE cannot import the mail folders, it means the file Folders.dbx is probably damaged. In that case, close OE and move all the other *.dbx files back into the store folder. When you re-start OE, it will build a new index of all the *.dbx files it can read, and create a new Folders.dbx. Understand though that you will lose the mail tree structure, all lists of newsgroups, and all synchronization options, and that message rules will likely need to be edited.

If any *.dbx file fails to be imported, you can buy DBXtract or download the free Macallan Outlook Express Extraction in order to extract individual *.eml files for each message it finds in the damaged *.dbx file. You can then drag those *.eml files and drop them into an OE mail folder in the OE Folder list.
If you still cannot start OE, your Identity in the registry is probably damaged.

1. Download the Force Identity Logon script.
2. Run the script to access the Identities Manager.
3. Create a new Identity, then switch to it when prompted.
4. If you have previously exported your accounts settings to Internet Account files (*.iaf), cancel the Add Account wizard that will start automatically. Then click Tools| Accounts and use the Import button to import each of your exported *.iaf files.
5. If you have not previously exported your account settings, follow the wizard to set up your basic email account.

If you cannot run the Identities Manager and OE still will not start, the damage in the registry is more extensive and requires more drastic steps. Open Regedit and export the entire HKCU\Identities key, then delete it. Double-click the saved *.reg file you exported and then try opening OE. If OE still fails to open, export each sub key HKCU\Identities\{GUID} sub-key to its own *.reg file, then delete the entire HKCU\Identities key again. Double-click each of the GUID *.reg files and then Open OE. The New Account wizard will begin, but just click cancel, as you are going to bypass this first default Identity. Click File| Identities| Manage Identities and try switching to your old Identity. If this is successful, you can then delete the new empty Identity from the Manage Identities dialogue. If this fails and OE will still not start, you will have to again delete the HKCU\Identities key, open OE, set up a new Identity and import your mail folders from the previous Identity. More information, including detailed instructions, can be found in the MS Knowledge Base article Cannot Start Outlook Express .