The NST file consists of all mailbox data like emails, address book, tasks, etc. When users make use of Outlook connector for Lotus Domino Server.When a user configures Office 365 account in Outlook.NST file is automatically created in Microsoft Outlook under 2 possible scenarios: But, they do not have much knowledge about NST file. Microsoft Outlook users are aware of PST and OST file.
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But, I want to know what is NST file and how to repair them? I came to know that these files have something to do with Lotus Notes. It means the generation of NST file does not occur in the new profile. These files appear in the same folder as PST. I tried deleting them, but Outlook recreates them every time I open it. This leads to improper working of Outlook and degraded its performance factor. “Outlook 2013 started generating a lot of NST files, around 183. Restart Outlook and then, you will see Use Exchange Mode option Outlook is not grayed out anymoreĪnother problem which is frequently faced by the Exchange Server users is given below:.Right-click on NoOST entry present at the right-hand side and then, choose an alternative of Modify.Then select Software > Microsoft > Office > 12.0 > Outlook > OST Go to plus sign next to HKEY_CURRENT_USER.Alternatively, click on Start and then Run Solution To Enable the Use Cached Exchange Mode 2016 OptionĪ user has to go through the following set of instructions to enable the cached option: When Microsoft Terminal Services is installed.The admin of Exchange Server has deactivated the functionality.No Exchange account exists on Microsoft Outlook account.There are various reasons when Use Cached Exchange Mode is grayed out. Download 100% Secure OST Recovery Tool Reasons Due To Which Use Cached Exchange Mode Is Grayed Out Outlook 2013