[Solved] Error – Roaming profile was not completely synchronized and unusual delay while logon/logoff

Issue: Roaming user profiles may face unusual delay while logon or logoff and may receive this error message – “Roaming profile was not completely synchronized” in Windows 10 OS.

OS: Windows 10 , Version 1803

Solution: 

Microsoft fixed this issue through update KB4340917, Installing this update will solve this issue.

Download KB4340917 Windows Update

Read more about this update here.