To run Outlook in the safe mode, follow this process: In safe mode, Outlook starts without loading the add-ins. One of the simplest methods to solve this error is to run Outlook in safe mode. Try automated tool Kernel for Outlook PST Repair to repair and fix Outlook PST error issues. Note: Before using any of these methods, make sure you close the Outlook application on your system from the background as well. So, let’s have a closure look at each of these methods. Also, there is no direct solution to solve this error.īut we have figured out some methods that can address this issue effectively. The actual reason behind this annoying error is not known yet, as it could appear due to improper setup of Outlook on your system or corrupt PST file linked with the Outlook account. However, amongst many errors, the most frequent error faced by them is “The set of folders cannot be opened.” This error often becomes an obstacle for users in accessing their Outlook emails and messages. Though it is a popular email client, users often face many errors while using it. Also, it provides Exchange connectivity, which is helpful for enterprise-level email communication. Organizations and individuals widely use Outlook as their email client, owing to its simplicity and integration with MS Office and other Microsoft products.

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