If you are tired of applying different ways to move from PST to Office 365 then do try out DRS Softech Import PST to Office 365 tool. It allows you to select an absolute folder and choose more than one single PST file at a given time. When you migrate PST to Office 365 then only one copy of similar emails is kept while migrating. It has user user-compatible GUI that helps the adaptability to the tool more effortlessly.