Hi a couple of days ago, I got chance to apply application hot fixes required to apply on cloud dev environment. So I made this very short post.     First Step: Check in all changes in TFS and make sure no error in AOT.   Second step:   You need to download hot fix from LCS.     Third Step: To download vm RDP file and credential from LCS and login in VM.     Fourth step:   Open visual studio with run as admin.   Then from Dynamics 365 menu click on addins and from contex menu click on hot fix.         fifth Step:     Extract the zip file and extract the hot fix file and load into dialog. Also set TFS settings.   Apply And in couple of second patch is applied     Sixth Step:   After path applied, Synchronization database from Dynamics 365 menu.       Seventh Step: Check all compile model, Make sure that all models are check in.       Eighth Step:   Resolve error in the case errors occurs, In my case no error occurs.     9th step:   Check in everything into TFS with hot fix name in comments.