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Change Alt+Tab transparency in Windows 10

In Windows 10, there is a hidden secret tweak to customize the appearance and behavior of the Alt+Tab dialog. With a simple Registry tweak you can control the transparency level of its background or make it dim the Desktop wallpaper. Let's see how it can be done.

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Change Alt+Tab transparency in Windows 10
To adjust the transparency of the Alt+Tab dialog, you need to do the following.
  1. Open Registry Editor.Windows 10 run regedit
  2. Go to the following Registry key:
    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

    Tip: See how to jump to the desired Registry key with one click.

  3. Create here a new subkey here named MultitaskingView.Windows 10 create multitaskingview
  4. Under the MultitaskingView subkey, create a new subkey here named AltTabViewHost.-Windows 10 create alt tab view host
  5. Under the AltTabViewHost subkey, create a new 32-bit DWORD value and name it Grid_backgroundPercent. Note: Even if you are running 64-bit Windows, you still need to create a 32-bit DWORD value.-Windows 10 new dword valueWindows 10 create grid background percent
    Set its value between 0 and 100 in decimals.
    0 - means a completely transparent Alt+Tab dialog background.
    100 - means a completely opaque Alt+Tab dialog background.
    In the following example, I set it to 50:Windows 10 grid background percent 50

The default look of the Alt+Tab dialog's background:-Windows 10 default alt tab look

The tweaked appearance of the Alt+Tab dialog background with Grid_backgroundPercent = 50:Windows 10 in action grid background percent 50

The tweaked appearance of the Alt+Tab dialog background with Grid_backgroundPercent = 0:Windows 10 in action grid background percent 0 -1 Windows 10 in action grid background percent 0 -2

 

Watch the following video to see this trick in action:

Tip: you can subscribe to our YouTube channel.

Use Winaero Tweaker

If you would like to avoid Registry editing, you can use Winaero Tweaker. It will allow  adjusting all the mentioned settings using a user friendly interface.

Winaero Tweaker alt tab 10

Dim Desktop wallpaper with Alt+Tab dialog in Windows 10
Another interesting option of the Alt+Tab dialog in Windows 10 is the ability to dim the Desktop wallpaper when you open the Alt+Tab dialog. You can control how much it will be dimmed with a simple Registry tweak.

  1. Open Registry Editor.Windows 10 run regedit
  2. Go to the following Registry key:
    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

    Tip: See how to jump to the desired Registry key with one click.

  3. Create here a new subkey here named MultitaskingView.Windows 10 create multitaskingview
  4. Under the MultitaskingView subkey, create a new subkey here named AltTabViewHost.-Windows 10 create alt tab view host
  5. Under the AltTabViewHost subkey, create a new 32-bit DWORD value and name it BackgroundDimmingLayer_percent. Note: Even if you are running 64-bit Windows, you still need to create a 32-bit DWORD value.-Windows 10 new dword valueWindows 10 BackgroundDimmingLayer_percent
    Set its value data between 0 and 100 in decimals.
    0 - means a non-dimmed desktop background when Alt+Tab is pressed.
    100 - means a completely dimmed desktop image when the Alt+Tab dialog is opened.
    In the following example, I set it to 50:Windows 10 set dimming to 50

The default look of the Alt+Tab dialog's background:Windows 10 default alt tab look

Here is how BackgroundDimmingLayer_percent = 50 looks:

Windows 10 in action dimming to 50The completely dimmed desktop image when the Alt+Tab dialog is opened looks as follows:

Windows 10 set dimming to 100Windows 10 in action dimming to 100Watch the following video to see this trick in action:

Tip: you can subscribe to our YouTube channel.

Use Winaero Tweaker

If you would like to avoid Registry editing, you can use Winaero Tweaker. It will allow  adjusting all the mentioned settings using a user friendly interface.

Winaero Tweaker alt tab 10

That's it.

What do you think about these tweaks? Do you like the customized appearance? What is your favorite trick? Tell us in the comments.

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Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

12 thoughts on “Change Alt+Tab transparency in Windows 10”

  1. Background dimming is nice. I wish my favorite Alt+Tab replacement VistaSwitcher had it. I still use it as I cannot tolerate Alt+Tab. Task View is nice but not as nice as VistaSwitcher.

  2. Mine wasn’t working at all (Windows 7), it only switches between most recent window and current window and never even shows the multi-window switcher, than while going through your tutorial, I discovered that it works when I use Alt + Ctrl + Tab. It still didnt’ work with Alt + Tab even after using your tweaker (and manually applying the key mods in Regedt32, which were not there previously). I guess I have to get used to using a 3-fingered “salute” just to switch apps, what a pain…

  3. The classic Alt+Tab Appearance looks cool in my new [© Microsoft Windows 10®™ (“19H1″ 10.18363.1016.0” “1909”)] Laptop! the basic feature about this Classic 2D Flip I like is that it shows any kind of operation running at the background even if it is not showing anywhere! it still works when I’ve opened any Modern Application, whether it’s Task View or Search, or Start Menu, or notification panel, it shows them as an just application icon with no name, except it shows Task View Title when opened task view!
    That good ol’ Settings or any good ol’ immersive app I open, it shows only application icon and it’s normal regular title! Just shows only the Unidentified application icon!

  4. With the AltTab classic appearance, you can also set the Columns & rows value :

    HKEY_CURRENT_USER\Control Panel\Desktop\CoolSwitchColumns
    HKEY_CURRENT_USER\Control Panel\Desktop\CoolSwitchRows

    that could be cool to add theses settings in Winaero / AltTab setting page ?

  5. If you have a multi-monitor setup, the background dimming only works on the primary display; the others stay at full brightness. Is there a way to get the other displays to dim as well? I imagine it should be possible, since opening the Task View/Timeline makes all of the monitors dim.

  6. How can I enable the Windows 7 Alt+Tab behavior where it hides all open windows and ‘peeks’ at the window focused on by the selection rectangle. This feature was really useful when having several instances open of the same application -e.g. IDE’s and text editors.

  7. I am on Windows 11 and when using Alt+Tab in standard mode (i.e. with thumbnails), the window menu of the application I switched to is always activated (as if I pressed Alt).

    Changing to classic Alt+Tab dialogue solves this problem, so huge thanks! However, does anybody know why this happens in the first place?

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