Solution for the Outlook Express Unknown Error “Cannot open Outbox”?

I am using Outlook Express in my Windows System. But, I am facing some unknown Errors as “Cannot Open Outbox”. There are many unknown errors. I do not know how to fix it. Please, help me in fixing the Error.

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Outlook Express has some Unknown errors. Some are critical and some are easy to Solve. You need to follow some Steps to fix this Errors.

STEP 1: Create a Folder to save mails in it which you want.
STEP 2: Go to Tools >> Options.
STEP 3: Select Maintenance >> Select Folder.
STEP 4: This will show the folders and select the folder which you want.
STEP 5: Press “Ctrl + C”.
STEP 6: Close Outlook and Click “Start”.
STEP 7: Go to “Run” and press “Ctrl +V”.
STEP 8: This is the Location of the Outlook Files. Click the “Ok” Button.
STEP 9: Now, you can see the Outlook mails, even in the Outbox. Your error is Fixed.