Problem
Outlook won’t start. It may or may not start in safe mode. You get event ID Error 1000 when trying to start outlook.
Cause
Unsure
Solution
Backup these reg keys, then delete them:
Delete HKCUSoftwareMicrosoftOffice16.0CommonLicensingCurrentSkuIdForApp – Whole Folder/Key
Delete HKCUSoftwareMicrosoftOffice16.0CommonExperiment – Whole Folder/Key
Delete HKCUSoftwareMicrosoftOffice16.0CommonExperimentEcs – Whole Folder/Key
Delete HKCUSoftwareMicrosoftOffice16.0CommonExperimentTas – Whole Folder/Key