VS2010, 2012 Installation Popup Unknown error

Probably the last time uninstall did not uninstall the complete problem, recently need to use VS to do something, but how can not be installed, most of the situation is the installation process pop up some "unknown error", even the specific error messages are not, just see the pop-up error when the installation steps to stay Helpless can only use the Collect tool to collect the log, search the log where errors occurred, found that there is a mistake to install the appropriate. NET Framework. But this machine is already installed, no way, remove all the framework reinstall, recommended to use the. NET Framework Cleanup tool to uninstall, online can be searched. After uninstall need to restart the computer, and then use Microsoft's online installation platform, what is called What installer, choose 3. X, 4.5.X of the framework installation, of course, the final may only install the current highest version of the framework, but this does not matter, the key is the final vs actually can be installed, it is so wonderful, have the same experience of friends can try.

VS2010, 2012 Installation Popup Unknown error