Hi Nick,
As you are facing issues with accessing the Start menu, Cortana, Action center after installing the latest update on your Surface 3, do not worry we will help you with this issue.
Do let us know if you were able to see any error message/ error code of this issue?
I would like to inform that this issue might have occurred due to corrupted/ missing system files on your device.
Let us try few of the below troubleshooting steps and check if it helps.
Step 1: I suggest you to run a SFC scan and check if it helps.
System File Checkeris a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.
Follow the below steps:
- Right click on the Start button, click on
Command Prompt (Admin).
- Type “sfc /scannow” without the quotes and hit
Enter.
- After the scan, restart the computer and check for the issue.
Note: If you are not able to repair some files after performing SFC scan, I suggest you to refer to the point 3 “Windows Resource Protection found corrupt files but was unable to
fix some of them. Details are included in the CBS.Log %WinDir%\Logs\CBS\CBS.log”. Under the section “Run the System File Checker tool (SFC.exe)” to repair the corrupted files after performing SFC scan.
Refer: Use the System File Checker tool to repair missing or corrupted system
files
If the issue still persists,
Step 2: I suggest you to run DISM or System Update Readiness tool and check.
The DISM or System Update Readiness tool may help you to fix some Windows corruption errors.
Fix Windows corruption errors by using the DISM or System Update Readiness tool
Hope it helps. Try the above and update us the status of this issue with required information for further assistance.
Thank you.