How to Fix Aero Transparency in Windows 11
You can now simply detect and fix the causes of your Windows 11 not being able to switch on the Aero feature.
Open Control Panel > All Control Panel Items > Troubleshooting > Appearance and Personalization to get started.
A troubleshooting dialog box will appear. Next, click the button.
The wizard will investigate all possible causes, such as Video Memory, Desktop Windows Manager (DWM) service, theme service, power settings, color depth, and so on, and will generate a report.
Aero should be troubleshot.
From here, you can see if everything is fine or if there are any concerns, which will be indicated.
The wizard will also try to resolve any concerns.