

If you are talking about installer (not program itself) I think this comes from your download location that your computer consider as coming from Internet. I'm not sure what the procedure is for digitally signing an exe, but that something that you will be doing again in the future? "Do you want to allow the following program from an unknown publisher to make changes to your computer?" It seems that the older executable for the portable packages used to be digitally signed, but for some reason, all the more recent packages aren't and I get the following UAC error message every time I launch the program. Try on another computer in an other place. Perhaps your firewall or some restriction. This link is used by the online installer and download a 24.4 MB exe when opened in a browser. KMPlayerSetup.exe file not found error message is getting when running online installer Plus, there are a lot of additional options as rotation, capturing, 3D image convertation, color balancing and others.Error message is getting when running online installer. It supports all popular video and audio extensions. If you are looking for versatile and stable player, then KMPlayer will be a good solution. To view a separate video frame, point your mouse cursor on a timeline segment. You can also open a folder to load several files and playback a stream audio or video. To load a file use drag-and-drop or Open file option. If you want to change a language, right-click on main screen and choose Language tab.

If you want to capture video or audio, use right-click button of the mouse and Capture tab. You can add to video all known formats of subtitles. You can also change menu theme and standard skin. If you need to get additional settings, use F2 key to enter the Preferences. The Control Box is used for brightness, saturation, hue and contrast tuning. There are Cycle 3D Mode, Playlist Editor, Control Box, Filters, Audio Streams, volume control and playback menu. Main buttons are under the timeline of play screen. It has already the base set of audio and video internal codecs. The utility doesn’t require additional libraries.

This player allows users to playback 3D, 4K and UHD videos. KMPlayer is a multifunctional media player that has a cross-platform support.
