How to clear Outlook cache

Like any other app, Outlook also creates and stores cache files on your computer to speed up its operation. These files help the app to autocomplete certain things and help it get to the required files quickly than if there was no cache. Sometimes you may want to clear Outlook cache.

You’ll especially want to do it if you notice a slowdown in the app’s performance, which is often the result of a large number of cache files created over time. There are ways to delete various Outlook cache files as shown below.

Clear Outlook cache files with File Explorer

Using File Explorer to clear Outlook cache is one of the easiest ways to accomplish the task. Since cache files are just like any other regular files on your computer, you can navigate to the folder they are in and delete them all at once. When that’s done, your Outlook cache is gone.

  • A folder will open containing your Outlook profile and cache files. You want to find the folder that says: RoamCache and double click it to open it.
  • All the files you currently see on your screen are the Outlook cache files. To get rid of these files, select them all by pressing Ctrl + A on your keyboard, right click on a file and select the remove choice.
  • You may want your Garbage can to make sure the files are gone for good.

While clearing the Outlook cache files usually won’t cause any problems, it’s a good idea to back them up in a separate folder before deleting them. In case things go wrong, you can restore your backup files.

Clear individual cache entries in Outlook

The above method will delete all Outlook cache files from your computer. If you just want to remove specific entries, such as certain email addresses that show up as suggestions, you can also do that from the Outlook app.

This will only remove the items you choose in the app.

  • Open the Outlook app on your computer.
  • Click on the new e-mail to open the email compose window. You’re not actually going to write emails.
  • In the Until field on your screen, type the item you want to remove from the Outlook cache.
  • When the item appears as a suggestion, hover your mouse over it and you will find a X icon next to the item. Click this icon and the selected item will be removed from the Outlook cache library.
  • If you want to delete more than one item, you must repeat the procedure for each of your items.

Clear Autofill Cache in Outlook

While writing new emails, you may have noticed that Outlook offers you to autocomplete certain things. It is able to do it because it has those items stored in its cache library. However, if you find this behavior of Outlook annoying or if you just don’t want such suggestions, you can clear this data from the app on your computer.

Both disabling and clearing the autofill cache in Outlook is quite easy to do.

  • Open Outlook on your computer and click the File tab at the top.
  • Select Options in the left sidebar on the next screen. It opens the main menu of Outlook settings.
  • You will see a number of options in the left sidebar of your screen. Find the one who says: Mailusually the second in the list, and click it to open it.
  • Several options related to email appear in the right pane. Scroll down this pane and find the section labeled as Sending messages† Then look for the option that reads Use List AutoComplete to suggest names as you type in the To, Cc, and Bcc lines and click on the Auto-complete list empty button next to it.
  • A prompt will appear on your screen. click on Yes to delete the Outlook auto-complete cache on your computer.

Clear form cache in Outlook

If you use forms in Outlook on your computer, your computer may also have cache files for these forms. You should also clean them up for a complete removal of all Outlook cache files.

This can also be done from the app on your machine.

  • launch Outlook on your computer, click on the File tab at the top and select Options from the left sidebar.
  • On the next screen, find the option that says Advanced in the left sidebar and click on it.
  • Scroll down in the right pane until you see the developers section. Find the Custom Forms button in this section and click it to open it.
  • A new window will open with a few buttons on it. Click on the Manage forms button to continue.
  • On the next screen you will find several buttons. Click on the one that says: Clear cache to delete your Outlook cache files. There is no prompt or anything like that.
  • You can then close the open screens when your task is complete.

If you’ve used any of these methods to clear Outlook cache on your computer, we’d like to know which method you used and why you chose to delete these cache files† Specific reasons for doing this? Your response is awaited in the comments section below.

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