5 Ways to Easily Speed Up Indexing in Outlook on Windows 11

by Loredana Harsana
Loredana Harsana
Loredana Harsana
Managing Editor
Loredana is a passionate writer with a keen interest in PC software and technology. She started off writing about mobile phones back when Samsung Galaxy S II was... read more
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  • The Outlook index makes managing multiple emails easy for professionals who have a lot of workers reporting to them.
  • If your files are large, it is possible to experience a slower indexing rate as the system will require more time to complete indexing.
  • Before diagnosing any issue with slow indexing of your Outlook, first, confirm that your system is capable of running the Outlook version installed.

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There are different tricks to speed up indexing in Outlook on Windows 11. Generally, indexing is an integral feature of Windows as it allows you to easily locate any file of your choice.

Logically, it may be correct to say this is why Microsoft included it in its email service, Outlook, but then, other email service providers have something similar.

It helps to filter and find a specific email among the large number of emails received from customers and other work colleagues. Users have reported triggering this action eventually slows down their system performance.

We understand this can be annoying especially when you need the email content to get something done quickly. Read on as we explain different methods you can use to fix the issue.

How can I speed up indexing in Outlook on my Windows 11?

1. Reduce indexing locations

  1. Open Settings by pressing Windows key + I.
  2. Type and select Indexing Options in the Search Box.
    Indexing Options
  3. Select Modify.
    Modify Index Options
  4. Choose Show all locations.
  5. Untick all other locations leaving only Microsoft Outlook to speed up the indexing.

You can also use this method if you have been finding solutions on how to speed up indexing in Outlook 2007.

2. Close all other running apps

  1. Right-click on the Windows logo in the Taskbar.
  2. Select Settings.
    Windows settings
  3. Type Indexing options in the Search Box.
  4. Check if there is any message like Indexing speed is reduced due to user activity.
    Indexing speed reduced
  5. Open Task Manager through Run (press Windows key + R).
  6. Type the command below and press Enter:
    Run taskmgr
  7. Under Processes, right-click on programs you which to close, and then select End task.
    Task Manager

3. Disable your antivirus

  1. Tap Windows key + I to open Settings.
  2. Select Privacy and Security then click on Windows Security.
    Privacy and Security
  3. Select Virus & threat protection.
    Virus protection
  4. Scroll to locate Manage Settings.
  5. Under Real-time protection, toggle the control from On to Off. Select Yes if the User Account Control prompt is displayed.

We recommended this as one of the last solutions. Although, if your email account is connected to an Exchange Server mailbox, it is automatically scanned for viruses.

This, however, does not encourage a total disabling of antivirus on your system as this can expose your PC to attacks. Only apply to see if it speeds up indexing in Outlook on your Windows 11 as some readers have claimed it works for them.

Disabling the antivirus might also work for you if you have been looking for how to speed up indexing in Outlook 2013.

4. Repair corrupt personal (PST) files

  1. Close Outlook.
  2. Tap the Windows key.
  3. Type and select Show hidden files in the Search Box.
  4. Choose Show settings.
  5. Tick the Show hidden files, folders, or drives option.
  6. Next, press the Windows key again. Type Outlook in the Search box.
  7. Select Open file location.
  8. Right-click on Outlook. Choose Open file location.
  9. Copy and paste the folder path in a document editor or write it in your Notepad. Next, scroll to locate and select the SCANPST Application.
  10. Pick Windows (C:), click on Users.
  11. Next, choose the folder with your Username. Select AppData, then Local.
  12. Find and click on the Microsoft folder. Scroll to choose Outlook in the list of displayed folders.
  13. Select the Outlook account you want to fix.
  14. When this is done, click Start and wait for the check to complete. Follow the system prompt to fix any identified issue.
    Start repair

This fix can correct many abnormalities that could be experienced by your Outlook account especially if it is not searching all mails.

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As the matter of fact, there is another way you can fix corrupted PST files without doing it manually.

The Stellar PST File Recovery software is designed to repair different Outlook errors like mailbox data file corruption or resolve various data file errors.

More so, you can recover lost or deleted Outlook data or scan large PST files with automatic functionality for reliable email support.

5. Rebuild the search index

  1. Open Settings by pressing Windows key + I.
  2. Type Indexing Options in the Search Box.
  3. Click on Advanced.
    Index Options
  4. Select Rebuild.

This solution can also be used if you have been finding tips on how to speed up indexing in Windows 10.

How do I restart paused indexing in Windows 11?

  1. Open Run by pressing Windows key + I simultaneously.
  2. Enter the command below:
  3. Scroll to locate and select Windows Search. After this, choose Restart.
    Windows Search

This method on how to unpause indexing in Windows 11 can also be used if you are in need of how to speed up indexing in Outlook 2010 on Windows 7.

It is effective in repairing errors encountered when Windows Search is turned off too. We also have an article on how to fix Windows 11’s Search indexing.

How long should Outlook indexing take?

The number of files you have would literally determine how long it would take Outlook to complete indexing. Without any issues, no matter how large the size of the files you possess, the process shouldn’t exceed 24 hours.

If you notice any delay, then try one of the solutions we highlighted above.

By now, we hope our guide has helped you speed up indexing in Outlook 365 and not only on Windows 11. It is possible none of this works as the problem may be more complicated than you think.

Sometimes, you may need to check the Microsoft community forum to confirm if your issue is not peculiar. There have been instances where users are only able to solve the error after Microsoft released a patch.

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