My taskbar has gone blank. Please help :(

Hi Avani

How are you? I hope you are doing good.

I am Juliet and It's my pleasure to help you today.

I know how frustrating this may be for you but I'll do my very best to help you :)

Please feel free to try the following steps to get back into a working state on your PC.

Step 1: Use CTRL-ALT-DEL and choose to open Task Manager.

Step 2: Choose “More details” at the bottom of Task Manager to expand Task Manager.

Step 3: Go to “File” and choose “Run new task”.

Step 4: Type “cmd” in the “Open” field.

Step 5: Paste the following:

reg delete HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\IrisService /f && shutdown -r -t 0

Step 6: Hit enter, and then your PC should reboot. After rebooting, everything should be back to normal.

I hope it helps! Let me know the results.

source:
https://answers.microsoft.com/en-us/insider/for...