Outlook 2010 Cannot Access .ostFileBy EmailDoctorTM

Error - Unable to Open OST File Outlook 2010

Reasons of Error – Cannot Access OST file

▪ Damaged OST File

▪ Unavailability of Exchange Server

▪ Not Proper Synchronization with Exchange Server

Damaged OST (Offline Storage Table) file

▪ OST file might be Damaged cause of Virus, Malware and Threats etc.

▪ Bad Sector might be the cause of OST file corruption

▪ System crash might be another cause of OST file damage & corruption.

Unavailability of Exchange Server

▪ OST file can’t open in case of unavailability of Exchange server connection.

Not Proper Synchronization with Exchange Server

▪ Wrong User Credentials

▪ Missing data in OST file

▪ Corrupt OST file

▪ Not proper network connection

How Can I resolve error “OST File Cannot be Accessed Outlook 2010”

Solution to Error “Cannot Open OST file”

Solutions to Error “Cannot Access OST”

Check User Credentials

Solution 1

Check Active

Connection

Solution 2

Re-Create OST File

Solution 3

Check for User Credentials

▪ Check for User account Credentials

▪ Mismatched Email ID

▪ Wrong Password

▪ Wrong Exchange Server address

▪ Blocked by Exchange Administrator

Active Exchange Server Connection

▪ Check for Exchange Server Connection weather it is active or not.

▪ If not active then contact to Exchange Server Administrator

Re-create OST file

▪ If all above solution Fails then you have to go for Outlook OST file re-creation.

▪ Outlook Offline Data File (.ost) is a copy of your data stored at Exchange Server. So, you can easily recreate it. You just need an active internet connection and running exchange server environment.

Step 1: Re-create OST file

▪ Exit Outlook Firstly

▪ Go to Mail setting

▪ In control Panel type mail in search box and click on Mailafter search process.

▪ Now “Mail Setup – Outlook” window will open.

▪ Now click on “Show Profile” and then select Profile and click on “Properties”.

Step 2: Re-Create OST file

▪ Now click on Email tab and select exchange account and then click on Change.

▪ Uncheck the checkbox “Use Cached Exchange Mode” and click on more settings.

▪ Now in Advanced tab select Offline Folder and File Settings and Disable offline use.

▪ Now again go Offline Folder and File settings and click on OK button.

▪ Now check the checkbox “Use Cache Exchange Mode” in cache exchange mode settings.

▪ Now click Ok and then finish and close all related open window.

That’s it. OST file has Recreated.

▪ The recreated OST file is mirror image of data stored in exchange server.

▪ New OST file will be synchronized with Exchange Server.

Exception Case of Handling Error!

▪ What if you don’t have running Exchange Server Environment or you have left the company where you were working but still you need to view some emails stored in OST file.

▪ What if you are an Admin and your company have moved to Office 365 and still you want to view some emails from Employees OST files or any other OST file containing important data.

▪ You have to go for any third party tool to access OST data. This tool will help you to convert OST file to PST file and then you can easily access all data from PST file by importing in MS Outlook.

Conclusion

▪ At last we can conclude that we have discussed about three different technique to handle error “Outlook 2010 Cannot Access OST file”.

▪ We also discussed about the reason of error and how we can stop this and also discussed the exception case of handling can’t open OST file error.

Thank you for watching