Techniques to Fix “Outlook Cannot Expand the Folder 2016” Error

Written By: Rohit Singh  Outlook Error February 6th, 2021

Microsoft Outlook cannot expand the folder 2016 error code occurs when someone is installing, pasting, sending, receiving, updating, etc. in different versions of MS Outlook such as 2007, 2010, 2013, 2016, etc. 

Outlook can focus on the message that is important to you. Also, it helps to manage your calendar to schedule meetings. Also, the performance depends on the Internet. The Outlook includes two different formats such as OST and PST.  You can also fix the Outlook Search Not Working Issue.

Reason behind the above error?

  • It can occur when there is not enough memory to perform the particular function.
  • Also, a damaged PST file is the main reason which causes error.
  • Damaged or Corrupt OST files. 

Here, I have mentioned some causes for Cannot expand the folder. The set of folders cannot be opened. error. Also, I have broached some solutions to fix this error. You can follow them as mentioned below.

Solutions to Fix Outlook Cannot Expand the Folder:-

Fix 1: Reset Setting in Internet Explorer

  • First, press the Window+R key.
  • After that, you will see the Run dialog box on your screen. Then type inetcpl. CPL and then click OK.
outlook cannot expand the folder
  • Now, check the box named-Delete browsing history on exit. Click on the delete button.
outlook cannot expand the folder
  • Here, you have cleared your junk settings. Now, you have to navigate to the security tab.
  • Move the slider up or down.
  • You can change the setting by changing Reset all zones to default level.
  • Now, navigate to the Advanced tab and then press the Reset button.
  • At last, check the delete personal setting, and after that, click on the Reset button.

After following the above solution, you can solve the problem. If you are facing any problem, then you can follow other solutions.

Fix 2: Temporary Files must be Deleted

  • First, press the Window+R key.
  • After that, you will be able to see the Run dialog box on your screen. Then type the temp command, and then click the enter key.
outlook cannot expand the folder
  • At last, select all the files and then delete them.
outlook cannot expand the folder
  • If there is an option to skip the file or do not show a dialog, then click on the yes option and continue.

By following the above solutions, you can delete all temporary files.

Fix 3: Delete All Temporary Files Related to Users

  • First, press the Window+R key.
  • After that, you will be able to see the Run dialog box on your screen. Then type the %temp% command and then click the enter key.
Outlook Cannot Expand the Folder 2016
  • At last, select all the files and then delete them.
Outlook Cannot Expand the Folder 2016
  • If there is an option to skip the file or do not show a dialog, then click on the yes option and continue.

This solution helps you to delete all temporary files that are related to the users. If you are facing any problem, then you can use another solution mentioned below.

Fix 4: Disk Cleanup Command should be used to Clear Junk

  • First, press the Window+R key.
  • After that, you will be able to see the Run dialog box on your screen. Then type the cleanmgr command and then click the enter key.
Outlook Cannot Expand the Folder 2016
  • Now, select the drive with the Window operating system and then click on the enter key.
  • You can now select the drive and then click on the cleanup System files on the next window.
Outlook Cannot Expand the Folder 2016
  • After that, click on all options except the Window version data.
  • At last, press on the Okay button, and you can wait for some time.

After following the above solution, you can clear all junk using the disk cleanup command.

Limitation of the Above Solutions

  • It affects the users having a large number of folders in their mailbox, public folder, etc.
  • You cannot exceed more than 1000 folders. 
  • It is a time-consuming process as you have to follow every step.
  • A non-technical person can only work under the expertise guidance. 

If your OST file is corrupted, then you have to delete your OST file. After that, restart your Outlook. It will automatically create your OST file again. To overcome this problem, I recommend using a third-party tool. It can helps you to convert your corrupt OST directly to PST, MBOX, EML & MSG Formats in an offline mode. Also, this tool provides the safest conversion from OST into Outlook PST.

Professional Approach Cigati OST Converter

OST Converter helps to import all OST files such as Emails, calendars, notes, etc. to the Outlook PST format. It helps to maintain the data integrity at the time of an offline OST file conversion. Also, this tool has an advanced search option. It helps the users to search OST files from the system. You can also preview your OST file before saving it to new files using the preview option.

Conclusion

The corrupt OST and PST files lead to the problem that  cannot expand the folder Outlook 2016 public folders. Many users were facing this problem. To solve this problem, I have mentioned some causes and solutions to solve the query. Also, there are many limitations. You can refer to them as mentioned above. To overcome these limitations, you can refer to the third-party solution ie. OST Converter tool.

Realted Post