Solved Outlook 2010 Won't Open

[bildonlon]

Dear Win 7 Forum folks,

From the Office 2010 Pro beta, Outlook worked fine for a few days but now I get an error message: "Cannot start Microsoft Outlook. Cannot open the Outlook window."


I've tried to repair Outlook, cleaned the registry, deleted, reinstalled and rebooted to no avail. I can't find a help file on the Microsoft Web site.

What should I try next?

Thanks in advance.

 

[Capt.Jack Sparrow]

Hi Welcome to Seven Forum

Try this
Start-> type; outlook.exe /resetnavpane

Also an try this

Go to Start > Regedit

1. Locate HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem
2. Delete the Profiles key under the Windows Messaging (Subsystem) key.

Hope that Helps

 

[RickD]

Thanks a million times for this regedit trick !!! I looked all over & nothing would work. I tried all the uninstallers, reg cleaners, etc, etc. nothing worked.
My problem was this:
When I tried to load MS Outlook I got the following message, and Outlook would not start up.
"Cannot open your default e-mail folder. The file c:\users\username\Appdata\Local\Microsoft\Outlook\username_hotmail.ost is not an Outlook data file (.ost)"


Your trick worked fine: just delete the profiles key.


THANKS!!!

 

[Capt.Jack Sparrow]

Thanks a million times for this regedit trick !!! I looked all over & nothing would work. I tried all the uninstallers, reg cleaners, etc, etc. nothing worked.
My problem was this:
When I tried to load MS Outlook I got the following message, and Outlook would not start up.
"Cannot open your default e-mail folder. The file c:\users\username\Appdata\Local\Microsoft\Outlook\username_hotmail.ost is not an Outlook data file (.ost)"


Your trick worked fine: just delete the profiles key.


THANKS!!!

Welcome to Seven Forum !

Your Most Welcome RickD ! Thanks for reporting

 

[Eediot]

Outlook is open but I can't find it...

...until I go to restart when Windows 7 tells me it's closing it first. And sometimes Office won't even start on reboot. The pointer wheel spins then stops but the program doesn't open.

Just advised same thing happening with Excel- program was open but then couldn't be found on desktop. W7 said it was closing it for restart though...

Brand new install of Office 2010 on Windows 7 system.

Thanks, Steve

 

[Taldree]

I can't open Outlook 2010

The Regedit solution worked a treat after all else failed. Thanks Captain and here's a big salute.

QUOTE=Capt.Jack Sparrow;421149]Hi Welcome to Seven Forum

Try this
Start-> type; outlook.exe /resetnavpane

Also an try this


Go to Start > Regedit

1. Locate HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem
2. Delete the Profiles key under the Windows Messaging (Subsystem) key.

Hope that Helps[/QUOTE]

 

[diverjerry]

I have this same problem and have tried solutions mention here and other places and continue to get the same error message "Cannot start microsoft outlook" I couldn't run the resetnavpane because it would just error. Yes I went to the program files (x86)..... I tried several things - none worked UNTIL I found this regedit- A BIG thank you for this information. I wasn't too upset as I just converted, actually went from is better term, XP Pro 32 bit to Windows 7 Ultimate 64 bit, then loaded Office 2010 Professional Plus. Prior to this I didn't use outlook or anything other than word. What I did use was thunderbird which was fine, but decided to try Microsoft office. I had never even executed Outlook and it stilled errored on the first try! All the other programs in the package opened with no problem. This was one of the hardest, not hardest, but close while doing this change in operating systems. Thanks Again Capt Jack

 

[judygolland]

I tried with regedit. I deleted profiles and I still can't open Outlook. Help??

 

[Eric1824]

Thanks For the Help

Did the regeidt and deleted the profile file. I knew there was a file I had to delete but could not think of it. But once I read your post I remebered the file. It worked great.

 

[gdehuff]

The Regedit part of this fixed the problem

Hi Welcome to Seven Forum

Try this
Start-> type; outlook.exe /resetnavpane

Also an try this


Go to Start > Regedit

1. Locate HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem
2. Delete the Profiles key under the Windows Messaging (Subsystem) key.

Hope that Helps

 

[Aikiray]

help needed

Cannot open your default e-mail folders. Access is denied you do not have permission required to access the file C:users\ administrator\local settings\ application data\ Microsoft\outlook\outlook.pst

My old pc was xp 32bit with outlook 200. I am administrator on both pc's

I am not particularly proficient with pc's
please help

Ray

 

[Capt.Jack Sparrow]

Hi there,

You might need to take permission to Outlook.pst file. Follow this article and just take ownership for Outlook.pst.

Note: Don't Take Ownership for any other files. Because missing permission can result in not booting the PC.

 

[sleet10]

Help: I have tried Capt. jack's fixes and still can not get Outlook to open. I get a message saying Outlook Messenger can't open until Outlook is on line, well I don't want Messenger, can't get rid of it. Earlier I had a little success by resetting my password, was able to get all my Outlook 2007 email loaded into 2010 and had a little success in sending emails, then it shut down and I am back to square one. I also get a message the the server is disconnected!!!!. All I want is to get Outlook to work. I had this preloaded into my new computer. Any help would be appreciated

Sleet 10

 

[Irene]

Capt. Jack is the real expert, but I wondered if you could try creating a new main profile through Control Panel | Mail.

If you use the guide below, just select the Office 2010 and your specific Operating System instructions:

How to create and configure an email profile in Outlook 2010, Outlook 2007, and Outlook 2003

 

[sleet10]

Irene:

Thanks for the reply. I was able this morning to load a "new" profile go figure and was able to get Outlook to respond and at least right now it is working. Time will tell. Thanks again,
Sleet10

 

[NJGolfer]

Regedit worked great

The Regedit solution did the trick. Thanks.

 

[senseless1707]

Hi Welcome to Seven Forum

Try this
Start-> type; outlook.exe /resetnavpane

Also an try this

Go to Start > Regedit

1. Locate HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem
2. Delete the Profiles key under the Windows Messaging (Subsystem) key.

Hope that Helps

Regedit fixed the problem for me!

 

[Honey]

PLEASE HELP!!

I did this - I deleted the profiles as you suggested. When I have tried to create a new profile - but same email etc - I have LOST all my inbox sub folders which have all my travel itinerary's in for my overseas trip next week. OMG Please Please tell me how I can retrieve them.

Thank you so much.

 

[Irene]

PLEASE HELP!!

I did this - I deleted the profiles as you suggested. When I have tried to create a new profile - but same email etc - I have LOST all my inbox sub folders which have all my travel itinerary's in for my overseas trip next week. OMG Please Please tell me how I can retrieve them.

Exactly which profiles did you delete?

 

[Paulks]

I am having exactly the same problem, I have tried all the solutions but nothing has worked, even done a complete re-install. What is odd I checked my daughters machine and noticed that she has Roaming Profile in her appdata....I don't even though I used to....help

many thanks Paul