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How do I delete all data in Outlook?

Microsoft Outlook is a widely utilized email application that has been in use for more than ten years. Unfortunately, in the end, vast archives of data accumulate on the system, which renders Outlook applications unaccessible, and over time, it could result in corrupted data. As a result, many users who seek assistance in managing their hefty email accounts end up deleting Outlook data files to boost the efficiency of their system.

Many users attempt to erase PST files to avoid problems and improve efficiency. However, questions arise about what would happen should I do if I erase the Outlook Data file? To stay out of this dangerous scenario, we recommend using some reliable programs.

Is it safe to delete Outlook PST file?

Removing a pst file If you would like to erase a pst file from your hard drive, make sure that you’ve removed the pst file from Outlook first. If you fail to do this, you’ll be unable to use Outlook properly, and Outlook might end in a corrupted mail profile.

What is All There in a PST File?

We all are familiar with PSTs, and working with them, we may recognize that it’s an individual Storage Table that contains all your personal information associated with Outlook. However, many of us are unaware of the various components of the PST file. So let’s find out what’s included in the PST file:

Inbox: This is where you will receive all of your inbound emails.

Outbox: It’s an account where all emails you send are kept until they can be sent out without any problem.

Send Items: A file that contains all emails you have sent is kept.

Drafts: A place that contains all your unread or incomplete emails is saved to enable you to start working on them later.

Deleted items: A file containing all things you have deleted (not only emails) is stored for a specific time.

Junk Email: A folder where your junk and spam messages will be.

Search Folder Search Folder: A virtual folder containing all the emails within categories based on search criteria.

RSS Feeds: This directory includes all the most recent feeds you’ve signed up to.

Calendars: The calendar can schedule and create appointments and events, meetings, and other events.

Contacts Save all your communications and email addresses and names to be easily accessible.

Tasks Create tasks and then track them until they’re complete.

Notes: They are short reminders of specific items that you can create without affecting your emails.

Journal: A tool that allows you to track your activities during your working hours.

This is a comprehensive listing of the contents the PST file can hold. It is possible to have several PSTs to meet different needs or even keep your data in a separate location.

Clear Auto-Complete Cache

If you’re looking to delete the auto-complete cache, you can either switch off auto-complete to ensure that the cached data won’t be displayed or erase the auto-complete cache in its entirety.

Click on the File tab and select Options.

Inside the Outlook Options dialog box, choose the Mail tab.

To disable autocomplete, head to the section for sending messages. Then, uncheck the box beside Use Auto-Complete List to suggest names to type into the Cc, To, and Bccc lines.

If you’d like to clean the auto-complete cache but without disabling the feature, click on the Auto-Complete list that is empty. The confirmation box will appear; click Yes.

Within the Outlook Options dialog box, select OK.

How can I remove old Outlook Data Files?

Start Outlook and then click the File tab. Click Account Settings>>Account Settings. Choose your account, click the Data File tab, then select Open File Location. This OST file is located at the location you have opened, and you can choose and remove the file by clicking here.

What is the reason Outlook uses up so much information?

Outlook Cached Mode: When first creating a mailbox, Outlook will consume a significant amount of bandwidth in copying information from the server to locally on the machine. This is normal, but it should slow down once all data has been transferred. Expanding the amount of data stored on your computer will force you to copy more of the servers.

Do you know if Outlook has a limit on storage space?

In most cases, the number of megabytes per account isn’t limitless. First, however, I’d like to confirm that there is no limit to the amount of information you could store in your mailbox (your Outlook 2022 Online mailbox storage capacity is as high as 100GB).


We’ve discussed the most commonly asked question about what happens when I erase the Outlook files. In the Outlook application, you must save and delete unnecessary files to function efficiently. In the absence of this, a lot of data can accumulate and cause delays in processing. Additionally, it could cause data corruption but also make the account inaccessible. Therefore, removing and deleting all non-essential files is the best option. Please read the blog post to determine whether it is safe to delete Outlook OST/ PST files. What are the opportunities and steps to take before deleting the deletion of Outlook data deletion?

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