New Outlook Error 080073cf8 New Outlook would not launch, so I tried to uninstall it, But it didn’t uninstall. It would not no matter what I tried. I got the error “You cannot uninstall Outlook” as well. Quick Answer on how I fixed it I typed this in the run line %localappdata%\Microsoft Deleted the OLK […]
Tag: Cannot start Microsoft Outlook
Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened
Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened
This can be a snaggy error to fix. I have seen this error for years with Microsoft Exchange. Lately the fix for me has been to delete the 16,454 KB size file in the app data folder.
Usually I back up any file I delete but this one is not really a data file that works with the OST, when you set up new Outlook profile it just makes it. And this can get snagged up I believe. If you delete it, then try reopening Outlook it might work. If not make a new profile (don’t delete the old one), set Outlook to open new profile. See if it performs better.
I also had to run 365 updates on my last client to get it working.
If not, then you might have other issues such as a VPN problem, Antivirus or Firewall.
If you need help, please use the form below.
Cannot start Microsoft Outlook Cannot open the Outlook window
Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The operation failed.
Update: please check out my latest blog with this problem: https://callthatgirl.biz/cannot-start-microsoft-outlook-cannot-open-the-outlook-window-the-set-of-folders-cannot-be-opened/
Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. An unexpected error has occurred
Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. An unexpected error has occurred
This error might be a doozy to repair. This specific error was coming up each time the computer restarted and would make a new profile when trying to open Outlook. This is usually not a Microsoft Exchange issue but a Windows/Outlook issue. I know how to troubleshoot Outlook pretty fast and each one of these small efforts were what I tried to eventually get it fixed. If you are not fast and don’t know what you’re doing, you might want to call me to help.
- All Windows updates were current, very important to check this first and 1909 is almost required at this point.
- The Windows account was logged into a weird Microsoft account, signed out and went local. Signing into Windows with an email account also in Outlook can have issues.
- Deleted all the credentials for Office 365
- Downloaded 32 bit Office 365
- Deleted the registry keys for Outlook (back up first!)
- Removed all the profiles in the mail app in control panel –if you need to do this, backup the OST files before deleting the profiles
- Reset passwords
- Launched Word and logged in with the Office 365 account
