--- title: "Big Sur Upgrade and Faculty/Staff ITS Managed Macs Bug" canonical: "https://kb.uconn.edu/space/IKB/10828449198/Big%20Sur%20Upgrade%20and%20Faculty%2FStaff%20ITS%20Managed%20Macs%20Bug" format: markdown --- The upgraded macOS Big Sur brings many exciting and innovative changes to macOS, from redesigned app icons to an overhauled user interface. Faculty and staff can upgrade their University-managed Macs to macOS Big Sur.  ## Issue Overview You may experience a display bug after upgrading your Mac to Big Sur. Scroll down for more information about the issue.  ### UConn Login Screen: Prior to Upgrade If your Mac is managed by ITS at the University of Connecticut, the customized UConn login screen depicts the usual aerial image of Gampel Pavilion, as shown below.   ![Log in screen](media://97e9b2cb-14cf-4cf6-80ea-8ca7396988a0) > ⚠️ This is the login screen when you log out of your computer – not the screen you see when you start up your computer. ### UConn Login Screen: After the Upgrade Once the upgrade is complete, you will be sent to the desktop as usual. However, when you get to the desktop, you will be sent back to the login screen as the customized UConn login screen loads. While the customized UConn login screen is loading, you may see something like the image below on your computer screen or monitor: ![Screen full of glitches](media://9f730e7f-a5fc-42be-8071-f5d10ae46708) > ⚠️ Please know that this is a one time event and it is completely normal during the process of the UConn login screen loading back up. Nothing is wrong with the computer. This screen will go away after about 60 seconds. After that time, you will see the customized University of Connecticut login screen as shown above. > ℹ️ If you would like assistance with your upgrade, [contact ITS](https://techsupport.uconn.edu/) at **techsupport@uconn.edu** or call **(****860) 486-4357** to set up an appointment. ## Related Articles > Macro (contentbylabel) > Macro (details)