Is Microsoft Outlook not starting up on your Windows 10 PC? Is it dispensing an error code “Cannot start Microsoft Outlook. Unable to open Outlook window” and you are in desperate need of a fix? If you are, then you have just landed at the right place. We are going to detail some easy fixes to solve the problem on your computer. This error usually occurs due to faulty navigation panel, broken add-ins, etc.
Fix 1 – Repair MS Office
Repairing MS Outlook should identify and solve the issue.
1. Press the Windows key+R.
2. Then, press “appwiz.cpl” and hit Enter.
3. After that, you need to find the “MS Office” package.
4. Next, you have to right-click on the installed office package and then click on “Change“.
5. Click on the radio button beside “Quick Repair“.
6. After that you have to click on “Repair“.
Follow the on-screen instructions to solve the problem. This should fix the issue.
Fix 2 – Reset Navigational Pane
One of the most common problems is the faulty navigational pane.
1. Right-click on the Windows icon. Then, click on the “Run” window.
2. Then, type this code and hit Enter.
outlook.exe /resetnavpane
This will reset the navigation pane that may have caused the issue on your computer.
Fix 3 – Start Outlook in safe mode
As we discussed, one of the reasons includes broken add-ins in MS Outlook.
1. Press Windows key+R to access the Run terminal.
2. To start Outlook in Safe mode, copy-paste this code and click on “OK“.
outlook.exe /safe
This will start the MS Outlook in safe mode, excluding any foreign add-ins.
Fix 4 – Create a New Outlook account
1. Open control panel.
2. Click on View by Large icons
3. Now, Select outlook and choose remove.
4. Click on Apply and Ok and close the window.
5. Now, press windows key + r key together to open run.
6. Now, type outlook.exe in it and click OK.
7. Now, enter your credentials (Name, email and password) and create the profile.
Fix 5 – Disable all add ins in Outlook
1 -Open Outlook.
2 – Click on File
3 – Click on Options
4 – Click on Add ins from the left menu.
5 – Now, click on Go button to the right of COM Add-ins
6 – Now, Uncheck all add ins and click OK.
Now, try again and see if Microsoft Outlook is opening or not.
Many thanks, I had Outlook inoperable, but your simple fix (Fix 1) sorted the problem 🙂
THANK YOU Sambit! I was not aware of the repair app within Office and it worked fine. And thank you for sharing your knowledge freely — the sign of an advanced soul!
No 3. worked for me . Thanks
Option 3 – Repair worked like a charm. Have spent over a week trying to get this sorted and went down the repair path before but it never worked and it was never easy. This was simple, quick, well explained and easy. Thank you!
Fix 4 works for me. Thank you.
Thank you! Fix 4 worked for me!
The “repair microsoft office” fix worked, thanks!
Fix 3 to Repair MS Office worked. Thank You!!!
Fix 4 Repair MS Office worked. Thank You!!!
Great article! Thanks!
Thank you very much – success! I tried other website suggestions, but they didn’t work.
Thank you! I have tried so many fixes on websites and this one actually worked.
THANK YOU! I went through 8 or 9 different links to try to find a solution. All very confusing. This was precise and fixed the problem. I have saved this page in my documents.
The “repair microsoft office” fix worked, thanks!
Thanks Sambit!