ERROR: Cannot open Outlook window! (Solution here!)

[Rudi]

Today I suddenly got a weird error in Outlook. When I opened it it gave an error saying it "Could not open the Outlook Window"??? I did a little Googling and came up with two steps that solved the problem. Thought I'd publish it in the event it occurs with anyone!

Step 1 : WARNING - This involves going into the registry!

Ensure Outlook is closed (It will be in this event )

- Type RegEdit in the START|RUN command of Windows
- Navigate to this folder in the reg: HKEY_CURRENT_USER/Software/MicrosoftWindowsNT/CurrentVersion/Windows Messaging Subsystem/Profiles
- Right click on the Profiles folder and choose Delete.
- Confirm with OK
- Close RegEdit

Step 2

- Then open the START|RUN command again and type (or paste this in): outlook.exe /resetnavpane

Open Outlook.

This process worked well for me. I do not understand the steps...but it worked.

PS: I had to import my PST file as Outlook was completely clean. After the import of my latest PST file...ALL was great again.

Hope this helps...if you encounter this problem!

[HansV]

It's not really necessary to delete the Profiles key using RegEdit. You can delete profiles and create new ones using the Mail control panel.

[Rudi]

It's not really necessary to delete the Profiles key using RegEdit. You can delete profiles and create new ones using the Mail control panel.

Thanks for that tip. I got this process of deleting the key from a Google search that pointed to the Microsoft Office Developer Site. I guess at that point I simply followed the instructions on the page to correct the error. I did not even think of going through the Mail Icon in control panel.

Anyhow...this and the STEP 2 process solved the issue...which, of course, I as grateful for!