Posted 12, Oct 2020 | By Editorial Team
“Looking a solution to resolve “Outlook OST file cannot be opened in Outlook? Don’t be panic. In this informative blog, we will try to give a reliable and best solution to the users using which they can easily regain their OST file data in Outlook”.
Microsoft Outlook is a most used email application which offers various benefits to the users. In Outlook, the OST file is used in order to do the daily tasks. Whereas the PST file, one needs not local machine always connecting to Server as it permits to work offline and sync with MS Exchange Server to update the changes. The default destination path of the OST file is C: drive/Users/AppData/Local/Microsoft/Outlook.
The Microsoft Outlook .ost file tool gets damaged and corrupted just like any other file. It leads to corruption due to various malware, viruses, and other malware attacks. Due to the corruption, OST data items including emails, contact, calendars, events, tasks, etc. become inaccessible to the users. In such scenarios, numerous errors occur like ‘Default Outlook .ost cannot be opened’. One technique to store mailboxes and to avoid any such action is to backup emails at a regular interval, Archive Outlook .ost file to read and access email messages in case of server maintenance or downtime.
Microsoft Outlook users at ease with the OST file. So, there are risks that they might encounter the error Outlook OST file cannot be opened in Outlook. Some other OST file errors which are very common and are handled by the Outlook users areas:
Whatever be the reason behind the error cannot open Outlook offline .ost file in Outlook 2019, 2016, 2013, and other versions, there are many reliable and best solution to troubleshoot the error. Let’s discuss them.
You can fix it this OST file problem using manual techniques. For this, first, take a backup of .ost file. If the trouble continues, you can try to restart the operating system. Here, the free manual solutions for fixing “Outlook OST file cannot be opened in Outlook” error are explained:
Approach 1. End complete Outlook related procedures
Approach 2. Disable Outlook Cached Exchange Mode
Approach 3. Disable the MS Outlook Add-ins
While add-ins are utilized to improve the functionality of Microsoft Outlook, defective add-ins may sometimes make more issues. Therefore, disable the add-ins by launching the Outlook in safe mode by just typing Outlook/safe in the Run dialog box. Try “Save and Send” and if it works, a defective add-in is the main reason behind the error. You can also start Outlook in safe mode by following the below-discussed steps:
Approach 4. Fix OST File with ScanOST.exe
Microsoft allows the users with an inbuilt ‘OST Integrity Checker’ tool named is ScanOST.exe that helps to repair minor corruptions in OST files. Repairing the Outlook OST file with SacnOST.exe is a smart way to fix the “Outlook OST file cannot be opened in Outlook’ error. Moreover, this Outlook inbuilt utility is available with Outlook 2007 and below version only.
Cons of Manual Solutions
If the above-mentioned methods don’t work to resolve the “Outlook OST file cannot be opened in Outlook” error, you can choose for SacnPST.exe utility for this repair error. Moreover, SacnPST.exe works only in case of minor OST file damaged and corruption. Therefore, it is always advised to use an automated OST to PST Converter software to recover and fix the corrupted OST file and the data associated with it to PST.