Solution (partly): If somebody else is looking for an answer.
1. Start installer
2. Select "install from local directory" (if you don't select this one, you don't get remove option!)
3. Then remove...

Apparently installer won't remove all installed files and doesn't clean win-titles (win either.

Ps. The installer should be easier to use and remove all installed files.


Question:
I know, already asked question and answered, but...

"It is easy to uninstall. You can run the installer and select the "Remove installed packages" option."

I do not have an option "Remove...." on installer (KDE for WINDOWS Installer - Version 1.0.0)

This is what I installed: http://windows.kde.org/news.php#itemKDE ... savailable
And selected only to install KTouch, but is also installed 69 outher filer (totally 498MB). When I start the installer, there are only options:
- Install from internet
- Install from local directory
- Download only

It only let me download and install, not remove. Where can I find that "Remove..." -option? Thanks!

This is how you can safely remove KDE without having any problems with windows:
http://ubuntulinuxx.wordpress.com/2013/07/16/how-to-safely-uninstall-linux-mint-from-dual-boot-windows-7/