Opening too many emails in Outlook can cause crashes

Microsoft has warned Outlook users of a potential crash when opening a large number of emails in the app at once.

Following numerous user reports of problems with the Outlook email client, especially the classic version, Microsoft has confirmed that opening 60 emails at once will cause the program to stop working properly.

When this issue occurs, users may see a memory-related error message that indicates performance is limited in Outlook. This limitation makes it difficult to multitask and quickly manage large amounts of information, especially when trying to open multiple emails at once.

According to Microsoft, users may encounter one of these messages when the problem occurs: “Sorry, we’re having trouble opening this item. This may be temporary, but if you see it again, you may want to restart Outlook.,” or “You are low on memory or system resources. Close some windows or programs and try again..” If you receive one of these messages, it is most likely an issue with Outlook performance rather than a problem with your computer’s RAM.

Microsoft recommends restarting the app if any of these errors occur and notes that a permanent fix is ​​currently in the works. For users who need to open more than sixty emails at once, Microsoft offers a workaround: setting USERProcessHandleQuotawhich controls the number of user objects that Win32 applications can open. Increasing this quota may provide some relief, but it can also affect the overall stability of the system by placing additional stress on the operating system.

Meaning for USERProcessHandleQuota can range from 200 to 18,000, with a default value of 10,000 (represented as 2710 in hexadecimal). However, Microsoft warns that this change should be used with caution as it may impact system performance.

In addition to these issues, Microsoft reminds users to save their Outlook and Windows software has been updated.as performance issues are sometimes associated with outdated versions. Regular updates often include fixes that optimize resource management and improve the application’s handling of large workloads. This is especially important for users who rely on Outlook for Business, where managing multiple emails effectively is important. Microsoft is also exploring ways to optimize memory usage in Outlook, and users can expect future updates that may reduce the need for workarounds when managing large volumes of email.