If you have ever used Windows XP Mode in Windows 7 you may have noticed that it only displays in 16 bit color mode. This makes some things appear a little off on the screen and may also limit compatibility with programs that need 24 bit or 32 bit color. Thankfully it is easy to enable 24 bit color in Windows XP Mode with integration features enabled.
To do this all you need is a simple registry setting added in side Windows XP. First click on Start and then Run. Type in Regedit and then press enter. You will want to drill down on the left side of the Registry Editor to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services Once you are there click on Edit and then New and then DWORD Value. Name the Value Name ColorDepth set the Value Data to 4 and leave the Base on Hexadecimal, then click Ok. Finally close the Registry Editor by clicking on the red X button in the upper right corner.
Now you need to restart Windows XP Mode, to do this simply click on the Ctrl+Alt+Del button at the top and center of your screen, then click on Shut Down. Once Windows XP Mode has turned off open it back up again and if you like you can check to see if it worked. Right Click on the desktop and click on Properties and then click on Settings. You should see under Color Quality High (24 bit). If you do not see this you may need to make sure you did the steps correctly.
Now if you were successful, awesome and good for you. You may notice that the text on the screen really has not changed much though. Well we can fix that too. Right Click on the desktop again and click on Properties and then Appearance and then Effects… then where is says Standard click on that drop down menu and select ClearType, then click on Ok and Ok again. This will enable ClearType Fonts and make Windows XP Mode even better to look at.
So there you go you can enable 24 bit color in Windows XP Mode with integration features enabled and enable ClearType fonts to make Windows XP Mode more readable and just better to look at.