I am trying to move an email to a folder in Outlook to the left of the emails. Every time I open a new received email and try to move it to a file, it says "cannot perform operation because item has changed".
This problem could happen due to many factors. You can check the following to see how it goes:
In Outlook > File > Options > Mail > Under ConversationClean up, Uncheck When a reply modifies a message, don't move the original > Restart Outlook (if it is already unchecked, check it Restart Outlook, Uncheck it and Restart Outlook)
If above does not work, uncheck all options under Conversation Clean Up
Account Settings > Open your account > More settings > Under Advanced tab, put INBOX in Root Folder Path. (If your all folders disappear, simply remove INBOX from here)