The heart of the internet This is a standard DigiCert wildcard cert that we have replaced every year with no issues. The free manual solutions to fix Microsoft Outlook keeps shutting down ends here. If you ran SaRA in Step 3, and you created a new profile, you can skip all of Step 4. Avoid the hassle of manually entering each email address. Take a look at your update history for the second KB mentioned. Outlook Keeps Crashing After Opening – Resolved I suspect it’s an update that came down recently but I have no idea which one. You could try just removing all the April Office patches in Windows Update. It is possible it’s a patch doing this, a plugin or extension or something else, but without an error or log entry, it’s hard to tell. I didn’t have to reboot, but did have to get users signed off before running the third command. Try the tool mentioned above because it is effective and convenient, and it scans and fixes errors in both PST and OST files. This tool can be downloaded for free as a trial version. Why My Outlook is Closing Automatically? Now, let us move into the solutions to fix the issue of MS Outlook. Once the file is re-written, relaunch the apps and everything outdoor signs for business is stable. The only other change to the Exchange Server was a certificate update for IIS. Want more options?