How to Fix Outlook Out of Memory or System Resources Error?

Overview:

There are multiple reasons for encountering the Outlook error “Out of Memory or System Resources.” This blog is dedicated to resolving this Outlook error by providing several solutions. If you are experiencing this error in Outlook, then this article will help resolving “Out of Memory or System Resources” error in just a short time. So connect with the article till the end and fix your Outlook error.

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Outlook – Out of memory or system resources. Close some windows or programs and try again.

Top Reasons for Error Outlook Out of Memory or System Resources

The “Out of Memory or System Resources” error in Microsoft Outlook 2021, 2019, 2016, 2013, 2010, 2007, and below versions of Outlook can occur due to a variety of reasons, including:

• Multiple Add-Ins – Sometimes faulty add-ins cause Outlook to produce Out of Memory or System Resources errors.
• Heavy Application Running – Multiple heavy applications may run on the computer when Outlook is accessed. This can consume a significant amount of RAM, which may cause Outlook to run slower.
• Outlook User Profile Corruption – User profile also can be a reason for this error generation.
• Bigger Outlook Data File – When the size of the Outlook PST or OST file becomes too large, it may cause errors to appear.
• Unavailability of Outlook Data File – If, for any reason, the Outlook data file is missing or corrupted, this error may occur.
• Outdated System or Resources – If older versions of the Windows OS or MS Outlook are used, this error may arise.

Quick Techniques to Troubleshoot “Out of Memory or System Resources” Error

There are multiple cases where Outlook displays such errors on the user’s computer. The main root of the issue is internal system resources. To resolve these issues, follow the methods mentioned below to fix the ‘Out of Memory or System Resources’ error in MS Outlook.

#1. Observe System Resource Usage

On a Windows computer, the Task Manager is the best tool to monitor the currently running processes and observe which applications use the most RAM and other resources. To check the Task Manager, follow the steps below:

· Open Task Manager:

• Press CTRL + SHIFT + ESC to open the Task Manager tool.
• Alternatively, right-click on the taskbar and select “Task Manager.”

· Go to the Performance Tab:

• Click on the “Performance” tab to view detailed information.

· Monitor System Usage:

• RAM Usage: Displays the percentage of memory being used. A higher percentage indicates more memory usage.
• Processor, Network, and Storage Usage: Also displayed, providing a comprehensive view of system resource usage.

Here, you can see the RAM usage as a percentage. A higher percentage indicates that the system is using more memory. The Task Manager also displays the usage of the processor, network, and storage.

If you observe your computer reaches a higher capacity of memory then your next step is to check the running applications in the Process tab.

· Open the Processes Tab:

• Click on the “Processes” tab in the Task Manager.

· Identify Resource-Heavy Applications:

• Look for applications using a high amount of system resources (CPU, memory, etc.).

· End the Task:

• Right-click on the resource-heavy application and select “End Task.”
• This will immediately close the application and free up memory and other resources for other tasks.

#2. Find Faulty Add-Ins in Outlook and Remove:

Many Outlook users use third-party add-ins to manage and simplify their work. However, sometimes these add-ins can cause Outlook to become unresponsive. To identify these add-ins, open MS Outlook in safe mode and deactivate them one by one to see if Outlook functions properly.

Follow these steps to perform steps in sequence-

Open Outlook in Safe Mode

• Press Windows +R, type Outlook.exe /safe, and click OK or press the Enter key.

Deactivate Add-ins in Outlook

1. Go to File > Options > Add-ins.
2. Select COM Add-ins from the dropdown and click Go.

• Uncheck the boxes next to the add-ins you want to deactivate.
• Click OK to confirm.

#3. Optimize System Resources for MS Outlook

To speed-up the Outlook’s performance, follow the below steps in sequence-

 Firstly, close the unused application from your computer to save system resources. After that, adjust the virtual memory setting by opening the System Properties. The steps are as-

• First, open Run Windows by pressing Win + R key.
• Type the following command- sysdm.cpl and click OK button.
• Click on the Tab, “Advanced”, and click on the “Settings…” button under the “Performance” section.

The following window appears as-

• Click on the “Advanced” tab and then click the “Change” button to modify and increase the virtual memory allocation for MS Outlook.

#4. Rebuild PST or OST file Using ScanPST.exe

Microsoft provides a built-in utility called ScanPST.exe with the Outlook installation on your computer, which helps resolve most issues with the Outlook data file (PST or OST). This utility is located in the default location of the Outlook installation folder.”Use the steps below to rebuild the fresh OST or PST file using ScanPST.exe utility.

• Open the ScanPST.exe utility from the Outlook installation directory.
• Once the utility is opened, click on the Browse button to locate the PST or OST file that you want to repair.
• Click on the Start button.
• The utility auto-starts the process with the provided PST. (This process will take some time to complete. So, please wait for the task completion.
• Once, the scanning is completed, the utility shows you the number of errors found in the PST file.
• Now, finally, click on the Repair button to fix the found issued from the PST file. The utility will fix the errors within a few minutes.

After that, your OST or PST file is an error-free file and you can open it with Outlook.

#5. Repair/ Update Outlook Installation:

A repair MS Outlook installation attempt is required if all the above method fails to fix the error “Out of Memory or System Resource”. To do this, follow the below steps-

• Open the “Control Panel” and click Programs >> Programs and Features.
• Find Microsoft Office or Outlook from the given list of programs.

• Right-click on it and select the Change option.
• Choose the Repair option and follow the on-screen instructions to repair MS Outlook installation.

The Bottom Line-

The “Outlook out of Memory or System Resources” error can be a painful situation for users and causes trouble in accessing emails in Outlook. To fix these issues, we cover the top 5 methods in the blog to use and resolve these errors and use Outlook with no resource blocking. This blog will help in finding the root cause of the error and similarly fix the issue with the right steps as mentioned in the blog post. I hope, we cover the most possible tips that will help you to fix the Outlook error “Out of Memory or System Resources”.