Resolve the Outlook is using an old copy of your Outlook data file (OST) error
Most organizations prefer Outlook for professional communication. So, it's a pathetic situation whenever you face a mistake while using the Outlook. Because of the error, the mailbox products including emails, calendars, contacts, occasions, etc. become inaccessible towards the users.
One particular error occurring most often is Outlook using old copy of information file. There can be some reasons with the result that the OST files can't open or access and show a mistake. A few of the reasons are OS crash, improper upgrade of Outlook, virus infection, etc. The above mentioned error is displayed using the message:
“Outlook cannot open your default email folders. Outlook is applying a classic copy of OST. Exit Outlook, delete the .ost file and restart Outlook. A brand new file is going...