Repair Microsoft Outlook Calendar Not Responding or Working Issue

Updated on November 09, 2023 by Henry Bray

In our professional and personal lives, we frequently use email calendaring to ease our work. Calendar helps us schedule and arrange our daily meetings/tasks/ responsibilities. Outlook is also the talk of the town in the email market, and it offers highly advanced calendaring. An Outlook calendar serves the same purpose and is integrated with the user's emails, connections, events, and other account items.

If you are an Outlook user and use a calendar daily, having an error may slow down your productivity. One of the common errors that users face is experiencing the Microsoft Outlook Calendar not Responding or Working issue. In that case, your timetable and plans may be disrupted due to extremely tough circumstances. It may also cause disruptions to your scheduled conferences, meetings, activities, group plans, and a variety of other everyday duties. So, in this article, we will go through the solutions to the problem of Outlook calendar not working in the Windows operating system. Also, we will be aware of the factors that are responsible for the calendar's error. Keep reading…

Why Outlook Calendar Isn't Working; Explore the Reasons

There are a lot of reasons that may cause this issue. Some of the causes or reasons are listed below:

Software Glitches or Bugs: Like any software, Outlook can experience glitches or bugs that affect specific features like the calendar.

Corrupted Data Files: Outlook uses data files (PST or OST) to store emails, calendars, contacts, etc. If these files become corrupted, it can lead to calendar problems.

Outdated Software: Running an outdated version of Microsoft Outlook can cause compatibility issues with newer operating systems or lack important bug fixes and feature enhancements.

Server Issues: For those using Exchange Server or Office 365 accounts, server-related problems could affect calendar synchronization and access.

Profile Corruption: User profiles can become corrupted over time, affecting various aspects of Outlook's performance, including the calendar.

Insufficient System Resources: If your computer or device is running low on memory or processing power, Outlook might need to function correctly, including the calendar.

User Error: Accidentally changing settings, deleting calendar items, or incorrect configuration can also lead to perceived calendar issues.

Data Overload: An excessive number of calendar entries, especially recurring events, might cause Outlook to slow down or become unresponsive.

Time Zone or Date/Time Settings: Incorrect time zone settings or a mismatch in system date/time can lead to confusion in displaying calendar events accurately.

Fix Microsoft Outlook Calendar Not Responding or Working Issue

As we know, there are multiple reasons behind this calendaring issue; hence, there will not be a single solution, especially a manual one. As there are various reasons behind the error, it is natural that every user has to try multiple manual methodologies. But you must try to restart your Outlook application for a basic solution.

However, sometimes, resolving the error by restarting is impossible. As a result, experts have felt compelled to seek multiple solutions for various reasons. Some of the effective solutions are mentioned to assist you:

1st Solution: Disable any suspicious or faulty add-ins

Add-ins are used in Outlook to help with some activities. But sometimes, installing faulty add-ins creates many errors, such as the abovementioned error. If you recently installed any add-ins from an untrusted source, you must remove them. To do so, follow the below-given steps:

  • 1. Firstly, run the Outlook application.
  • 2. Choose File, then press on Options.
  • 3. On the left side of the screen, select Add-Ins.
  • Repair Microsoft Outlook Calendar not Responding Error
  • 4. From the Manage drop-down option, choose COM Add-ins.
  • 5. To access the COM Add-ins panel, hit the Go button.
  • 6. Now uncheck all of the add-ins you've chosen.
  • 7. Click the OK icon.

However, most Outlook users have confirmed that turning off the application's add-ins resolves the calendar hanging issue. If you want to be more precise, turning off the Outlook add-in can resolve the Microsoft Outlook calendar not responding or working issue. Try it for better results.

2nd Solution: Configure a New Outlook profile

Outlook profile has a direct and immense effect on Outlook email application. Another possible alternative to the calendar not working error is to create a new Outlook user profile. You can delete your infected profile and create a new one by following the steps below.

  • 1. Firstly, go to your Windows control panel.
  • 2. Select and click the Mail icon From the Control Panel.
  • 3. In the Mail Setup window, click the Show Profiles option.
  • 4. Delete your current profile by selecting it and clicking the Remove icon.
  • Manual steps to Fix Repair Microsoft Outlook Calendar not Responding
  • 5. To verify, press the "Yes" icon.
  • 6. Click the OK button.
  • 7. Launch the Outlook program.
  • 8. To open the Add Account window, go to File > Add Account.
  • 9. Then fill in the blanks with the necessary information.
  • Steps to Fix Outlook Calendar issue
  • 10. Then, hit the Next button.
  • 11. Click the OK and Finish buttons to complete the process.

3rd Solution: Run your Outlook in Safe Mode

Safe and secure way to repair Outlook Calendar not Responding error

The simplest and most suggested option is to open MS Outlook in Safe Mode. If you want to see Outlook in safe mode, then you must follow these procedures:

Firstly, execute the run command (press Win + R) and type outlook.exe/safe in the empty box; if the MS Outlook calendar appears correctly in safe mode, then you should deactivate the suspicious add-ons. And your problem may get resolved if any issue persists due to this.

4th Solution: Analyse the Calendar using Microsoft in-built facility

Fix Outlook Calendar not Responding Issue

Microsoft has also offered an in-built facility to correct Calendar inaccuracies in Outlook. Admins may use this to check for issues in Outlook calendars. Microsoft's calendar inspection tool is known as the "CalCheck" tool. It installs MS Outlook and its calendar on the local PC using the command line. It may request rights, bookings, and other details; i.e., this tool examines each item in the Outlook calendar, including privileges, bookings, and many other details.

Considering these advantages, there is one disadvantage: the calendar to be studied must be on the Exchange Server. This program is incompatible with IMAP, POP3, and other non-Exchange mail servers. You may continuously encounter a Microsoft Outlook calendar not responding or working issue.

Are Your PST Files Corrupted?

In many scenarios, we find that our Outlook files are not accessible, and that is because your PST files are corrupted.In such a situation, your Outlook calendar will not respond, or a working error can occur. However, data loss is also possible due to PST corruption. The best solution is to use an Outlook Repair tool to resolve it.

You can use the Regain Outlook PST Recovery tool. This professional tool is compatible with all Windows versions and recovers every kind of corrupted PST file with no size limitations. Before saving, it also provides a preview to make you assured about the correctness of the data. It is one of the most trustworthy software, with a simple and easy-to-use interface that allows anyone to easily repair and recover their PST file with just a few simple steps:


  • 1) Install and launch Outlook PST Recovery Tool.
  • Regain Outlook PST Recovery tool to fix Outlook Calendar not working
  • 2) Now browse for the corrupted PST files for recovery.
  • Step 2
  • 3) The software will scan, recover, and preview the items within the added PST files. It helps to get satisfied with the correct recovery.
  • Step 3
  • 4) Now browse the destination path and select the resultant file format. If you are choosing the PST file format, then you can also limit the resultant file size using the split option. Click on the Convert Now to proceed.
  • Step 4
  • 5) After completion of the saving process, you will get a message "File conversion process has been completed."
  • Step 5

Therefore, using this software, you can quickly repair corrupted PST files, and afterward, you may get additional fixes. Besides, if any of your PST files get destroyed, you can recover them using the software.

Final Conclusion:

In today's fast-paced world, an organized calendar is the backbone of our daily routines, aiding in smoothly arranging tasks and responsibilities. The Microsoft Outlook Calendar, seamlessly integrated with emails, contacts, and events, offers the same functionality. However, encountering the Microsoft Outlook calendar not responding or working issues can disrupt your plans, potentially causing chaos in scheduled meetings, activities, and collaborative efforts.

Overcoming the challenges an unresponsive Outlook Calendar poses requires a multi-faceted approach, adapting to diverse situations and causes. Following the methods outlined in this guide, you can regain control over your scheduling. Embrace the solutions presented here and ensure that your Outlook Calendar works seamlessly, keeping your life organized and efficient. Also, we recommend downloading the free demo version that allows you to recover and convert 30 items per folder.


Frequently Asked Questions:

Q1: Can corrupted PST files lead to calendar problems in Outlook?

Ans: Yes, corrupted PST (Personal Storage Table) files can cause issues with various Outlook functions, including the calendar. Corrupted data can lead to errors and unresponsiveness. If you suspect PST file corruption, it's advisable to use reliable PST repair tools like the Regain Outlook PST Recovery tool to recover data and restore functionality.

Q2: Can third-party add-ins affect my Outlook Calendar's performance?

Ans: Yes, third-party add-ins sometimes conflict with Outlook's core functionality, including the calendar. Faulty or incompatible add-ins can lead to unresponsiveness or errors. To troubleshoot this, you can turn off all add-ins and gradually enable them individually to identify the problematic ones.

Q3: How can I create a new Outlook profile to fix calendar issues?

Ans: Creating a new Outlook profile can help resolve problems related to profile corruption. To do this, access your Windows Control Panel, select the "Mail" icon, click "Show Profiles," and then delete the current profile. Afterward, launch Outlook and set up a new profile by going to File > Add Account and entering your information.

Q4: How can I prevent Outlook Calendar issues in the future?

Ans: Regular maintenance is key to preventing Outlook Calendar problems. Keep your software, including Outlook, updated with the latest patches and updates. Be cautious when installing third-party add-ins; only use those from trusted sources. Regularly back up your Outlook data to ensure you can recover in case of unexpected issues.

Q5: Can I use the Regain Outlook PST Recovery tool for other Outlook-related problems?

Ans: Yes, the Regain Outlook PST Recovery tool is designed to address various PST file issues beyond just calendar problems. It can help recover emails, contacts, attachments, and other data from corrupted or damaged PST files, making it a versatile solution for Outlook data recovery.