Win7 system can not be reinstalled after uninstalling CAD.

CAD is a computer-aided design tool, many design users will install and use on the computer. Recently, the user has installed the CAD tool before the win7 64-bit flagship version. After uninstalling, the reinstallation display has been installed, resulting in the inability to complete the installation. Many users are overwhelmed by this problem. The main reason for this situation is uninstallation. The CAD tool was not cleaned up. Let's take a look at the specific solutions.
Solution /Step:
1. Open the start menu at the bottom left of the desktop, find the [Run] option inside, and click Open.
2, after entering the run dialog box, enter the [regedit] command inside, click to enter the registry editor.
3, directly locate the [HKEY_LOCAL_MACHINE\\SOFTWARE\\Autodesk\\AutoCAD\\R18.0] option.
4, right click on the mouse [R18.0] click to delete the entire option, including the following key values.
5, then locate HKEY_CORRENT_user\\SOFTWARE\\Autodesk\\AutoCAD\\R18.0, right click and delete [R18.0] directly.
6. Locate the [HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Installer\\Products] option.
7, under the Products to find [7D2F38751008xxxxx] open items, click delete, and then re-install it.
Installation CAD display has been installed, if there is a phenomenon that can not complete the installation, we can follow the above tutorial to the registry related settings, then the CAD can not be installed to solve the problem can be easily solved .