How to Change Alt-Tab Transparency in Windows 10

This was a tip I found on the MakeTechEasier website (a very handy website that I can recommend you visit) for changing the alt-tab transparency in Windows 10 and I thought people may find it useful so thought I'd share.

Change Alt-Tab Transparency in Windows 10

Note: before making any changes, make sure that you have a good backup of your Windows Registry. This helps you to restore your Windows system if anything happens.

To change the alt-tab grid transparency in Windows 10, search for regedit in the Start menu and click on it to open the Windows Registry Editor.

After opening the Windows Registry Editor, navigate to the following location:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\

Now we need to create a new key. To do that, right-click on the “Explorer” key and select the option “New” and then “Key.”

Name the key MultitaskingView and press the Enter button to confirm the name.

After creating the key, we need to create one more key. Again, right-click on the newly created key and select the option “New -> Key.”

Name the new key AltTabViewHost and press the Enter button.

Select the newly-created key, right-click on the right panel and then select the option “New” and then “DWORD (32-bit) Value.”

The above action will create a new blank value. Name the new DWORD value as Grid_backgroundPercent and press the Enter button.

By default, the DWORD value will have its Value Data as “0,” which simply means that the alt-tab background will be completely transparent.

If you want the alt-tab background to be completely solid with no transparency, then we need to change the Value Data. To do that, double-click on the DWORD value to open the Edit Value window. Enter the Value Data as “100,” and click on the “OK” button to save the changes.

After making the changes, don’t forget to restart or re-log in to your system to make sure the changes take effect. From this point forward, the alt-tab background will be completely solid.

As you can tell from the entered values, “0” represents complete transparency, and “100” represents no transparency. i.e. a solid background. So to increase or decrease the transparency, all we have to do is use a value that is in between 0 and 100. For instance, if I use 50 as the Value Data, 50% transparency will be applied to the alt-tab background.

To restore default transparency, simply delete the newly-created DWORD value.

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