Is it safe to delete OST file

Is it Secure to Delete OST File? What Happens if You Remove OST File?


While accessing MS Outlook, it appears to a lot of users that their PC hangs regularly. One of the major reasons behind this is over-sized OST data files. Microsoft Outlook users have some of the most significant data saved in OST. It appears quite tough for users to delete their previous OST emails.

Gradually, OST files become large in size, as well as more prone to corruption or damage. Sometimes, users even have to delete the OST files. However, now the question is what happens if we delete OST? Is it possible to delete OST without any loss of email messages?

Today, in this article, we are going to answer both of the questions, along with some other facts. Also, we will learn how to recreate the OST file effortlessly. So, let’s just get started without any further ado.

Offline Storage Table File: A Brief Overview

Whenever users add an account to Microsoft Outlook, a replica of the data is stored on the machine automatically. It will permit them to access already saved calendars, email messages, and a lot more without any internet connection. Just like any other account, including Exchange and Office 365, utilizes OST. It saves all the modified MS Outlook information executed when there is no internet connectivity.

Therefore, whenever users account gets synch to the internet, modifications completed in Outlook account get coordinated with the email server. It is not possible to send or receive any mail when there is no Internet. However, the users may see old data and unite the new texts that will be stored in the OST data file.

At the time you try to delete OST file, it displays the following message:
“Careful, if you remove this account, its offline cached content will be deleted, learn how to make a backup of the offline .ost file”

What is the Need to Delete OST File of Outlook?

One of the most ordinary causes of OST file removal is Synchronization mistakes. In such scenarios, the MS Outlook program acts bizarrely and offers irregular outcomes. This problem can be fixed by eliminating the local copy of OST. However, users have an uncertainty that is fine to remove the Outlook OST data file in Windows 10.

At times, the machine halts quite much and the motive behind that is excess space problems. This memory issue can occur because of the huge size of the Offline Storage File. In addition, the enormous OST file directs to the inaccessibility and corruption issues of the OST file. This is going to build issues like MS Outlook stop working, and a lot more. As a result, it’s better to remove the OST and construct a new one. Nevertheless, several users have a similar question i.e. “can I delete OST file without losing emails?”.

The other reason why users wish to comprehend that what is going to occur if we eliminate the Outlook OST file is that the email client corruption can deteriorate because of the inaccessibility of EDB files. In usual circumstances, at the time the users delete a previous OST file, there are probabilities that the messages are not going to be deleted. Users can synchronize the email account with MS Exchange Server and recover the Microsoft Outlook data back. Nonetheless, if EDB is inaccessible, users require a resolution to retrieve damaged OST files. This issue can be solved with Ignissta OST converter. It is dedicated to creating a backup of files effortlessly.

How to Safely Remove OST Files in Windows 10

Some professionals don’t have faith in backing up Outlook OST files since they have a defined idea that they can simply download these files once again from Microsoft Exchange Server. However, it’s imperative for data retaining or when the data files are removed unexpectedly from Outlook. It’s suggested that you to export OST file into PST format.

Backing up the data in PST allows you to access OST from diverse accounts if a similar profile is unavailable. Moreover, you can move Outlook OST file to another computer by converting it to PST. Use IGNISSTA OST2PST Converter to migrate Outlook data into PST. Nonetheless, the Import/Export utility of Outlook can even be utilized but the main restriction of this inbuilt tool is that the user is not able to migrate additional mail components, including journals, calendars, contacts, and much more.

Download OST to PST Converter

Simple Steps to Delete Outlook OST File

  • Step 1: First, close Outlook application
  • Step 2: Move to Start and in the search bar, type Run. Find out the OST with the help of the run command. Put the following in the Run Window: C: Users\User\Name\AppData\Local\Microsoft\Outlook
  • Step 3: Hit on the Ok button, as well as the location where the Outlook OST file is located opens.
  • Step 4: Now, choose OST and hit on Delete. A validation message occurs on the screen ‘Are you sure you want to move this file to Recycle Bin?’ You need to choose the Yes button to delete the file.

As soon as the OST is deleted, you might sense the requirement to recreate it to allow the Outlook to operate competently. It can be performed by building a fresh OST with a dissimilar pathname and link it with MS Exchange. You need to configure your MS Outlook and start functioning in offline mode with the help of the newly built and synchronized OST.

How to Create or Rebuild New OST File?

After you got the message of fruitful deletion of OST, confirm if it is accessible on MS Outlook. Once you are certain, follow all the steps as mentioned below to create & synchronize fresh OST.

  • Step 1: Quit Microsoft Outlook.
  • Step 2: Now, rename the available OST file. This makes sure that the file name is dissimilar for each file.
  • Step 3: After this, start your MS Outlook account once again in Online Mode.
  • Step 4: An error message will appear: “The file “C:\Exchange directory\file name.ost could not be found”. You need to click on the OK button.
  • Step 5: Move to Offline Folder File Settings, hit on OK button.

Important Note: You can even change the path, as well as the OST file name using this dialog.

  • Step 6: You are going to get an error message- “The file c:\Exchange directory\file name.ost’ could not be found. Would you like to create it?” Hit on Yes.

Note: Once you do this, Outlook will begin in online mode

  • Step 7: Click on Synchronize-All Folder, on the Tools menu.

This way, the freshly built OST file gets synch with the MS Exchange Server. Now, it’s possible for you to configure MS Outlook to start working in offline mode with the help of OST Data file.

Final Thoughts

Interaction is one of the most crucial things for the organization. If it gets hurdled, users are not able to function in a suitable harmony. In that case, damage in OST is definitely not agreeable. You can take the help of Ignissta OST File Converter, which scans the damaged or corrupt files/folders and repairs the entire mail components and stores them in a fresh PST.

A newly created PST file can be migrated to Outlook for email-data retrieval. The entire messages are the same and data is accessible in novice format minus the damage. I hope, now you can delete the OST file without any issue. All the best! Is It Secure to Delete Outlook OST File? How to Build New OST?

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