Problem when downloading file says installer integrity check has failed. common causes include incomplete download and damaged media. cannot install files.

I assume you turned off the anti virus before you began downloading.uninstall/delete last download and re download complete package.if it still misbehaves...try installing from safe mode.please vote.

if you work on win XP you can download K-lite codec
but if you work on win 7 you can download win7 codec

Hi,

Please read below Microsoft solution

http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_programs/error-installer-integrity-check-has-failed-common/c2e96749-6181-487c-80ec-3a0e24c32325

Thanks and Regards
Trinoj

You can install Leawo Free MP4 Converter, when you install it, it will ask you to install a codec package, after you finish it. you can convert your video to MP4 format easily, or just watch your MKV video with Windows Media Player.

NSIS is a type of installer packahe (other example Installshield, MSI, etc. ) Try to downlaod to another mirror. Also try to download it on a different location. Some internet cafe prevents users from downloading exe file.

To play .mkv file. Use gom or vlc player with klite codec installed

If you are receiving this problem from an installer located on a disc or other media besides the Internet, then the problem may be due to a hardware failure or more likely the physical media being damaged.

Installer integrity check has failed. Common causes include incomplete download and damaged media.

Best is to get another copy of the CD and install the software you needed.

Regards

Because the program installer is corrupted. Try to download your program again from the source.

Error-7191 error symptoms can include slow PC performance, program crashes, system freezes, startup/shutdown problems, and file errors. Risks that can result from not repairing your computer include blue screens, file corruption, and hardware failure.

Fixing Error-7191 is easy. Download and install Regcure, a Microsoft Windows tool that will analyze your registry for missing, obsolete, and corrupt entries resulting from failed installations, incomplete un-installations, disabled drivers, and spyware applications. Click on the link below for your free download.

If you do not like Regcure / You can find another registry cleaner or backup and format and reinstall the OS.

Email me for you have questions @ [email protected]

You need to install Klite Codec media pack from the following.

http://ftp.isu.edu.tw/pub/Windows/softking/soft/en/k/klcodec_510f.exe

Or Else
Use VLC media player and you can download it from

http://www.videolan.org/mirror-geo.php?file=vlc/1.0.1/win32/vlc-1.0.1-win32.exe