Hopefully, one of the fixes above helped resolve your problem. Then, click Control Panel.Ģ) Under View by, click Category. Then, click Uninstall a program.ģ) Right-click Microsoft Office 365, and then click Uninstall.Ĥ) Go to Office 365 official website and click Sign in to sign in your account.ĥ) Click Install Office, and then click Office 365 apps to download Office 365.Ħ) Open the downloaded file and follow the on-screen instructions to install Office 365 again.ħ) After the process is finished, reopen Outlook to see if this worked for you.

Here is how to do it:ġ) On your keyboard, press the Windows logo key and type control. If none of the above fixes helped, reinstalling Office 365 may be the solution for you. If your problem still exists, check the fix below. Reopen Outlook to see if this worked for you. Please don’t close Outlook while it’s rebuilding your data file. This may take several minutes or even an hour, depending on the number of Outlook files you have. Then, click Go.Ħ) Uncheck the box next to the unessential add-ins to disable them. To fix Outlook crash problems caused by a specific add-in, follow the instructions below.:ĥ) Verify that the Manage option is set to COM Add-ins.

Fix 4: Remove unnecessary Outlook add-insįaulty add-ins running on top of Outlook can also affect its functionality. If your problem persists, try the next fix.

Reopen Outlook to check if it runs smoothly now. Reopen Outlook to check if it runs smoothly now.Click Next, then follow the on-screen instructions to repair your account.Ĭlick Next, then follow the on-screen instructions to repair your account.

Select your account, then click Repair.

Click Account Settings, and then click Account Settings in the drop-down menu.Ĭlick Account Settings, and then click Account Settings in the drop-down menu.

Outlook crashes when opening signature