Win7 operating system transparent window settings are gone, how to do

The transparent window of win7 system is a function that many people like, but if one day you find that this effect is gone, what should you do? How can I restore the transparent window of win7 operating system?
1
will appear One of the main reasons for this problem has just changed the theme.
You just changed a theme that is not an Aero theme. The win7 transparent function is a side effect of the Aero theme, so you will definitely not have this feature if you change other topics.
2
If it is just after the system is replaced, there is no win7 transparent function.
Normally because the graphics card driver is not correct, you can unload it and replace the driver with the driver wizard.
3
Exclude the above 2 errors, it is very likely that you accidentally turned off the transparency effect.
Right click on the blank space of the desktop and select Personalize. Then click on the window color and appearance, and select the "Enable transparency effect" checkmark.

The above is about the win7 operating system transparent window settings, how to do it, many times because of misuse. Xiaobian collected only the above three cases, of course, the Trojans in the poisoning will also be caused, this small series will not be considered, because of poisoning, what kind of problems in the Trojan will cause.