Why do I get this error while installing a program? Installer integrity check has failed. Common causes include incomplete download and damaged media. Contact the installer's author to obtain a new copy. More information at: http://nsis.sf.net/NSIS_Error

When installing Zoom

Error 0

Error 0 can be caused by:

• Error encountered when upgrading from Version 0.9 or 1.0
• The source link of the Zoom installer package is broken
• An antivirus software like AVG that could have quarantined the files that were downloaded by the Zoom Installer

Solution

• Try uninstalling Zoom (from Programs and Features), then downloading the Zoom client installer (Download) manually and then install it (as Administrator)

try a different set up file sir.

at what stage you get this error?

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.

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

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.

Here you go. This is long winded but should fix you up.
Error 1721 is a common problem for many different Windows systems, shown when the installation you're trying to perform develops a problem and needs to be fixed. If you have this error, it's recommended that you're able to first fix any problems that could be inside your Windows system, and then cure the specific issues that the Windows Installer program has on your PC. This tutorial is going to show you exactly how to do that...
This error will typically show like this:

• Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personal or package vendor.

The problem with this error is actually caused by a very simple issue - the Windows Installer program that is used to install the various files & software onto your PC is actually damaged or corrupted & preventing your system from installing the program you want. This can be caused by a number of problems, including everything from having corrupt registry settings to the Installer program on your system being damaged. To fix this, you first need to make sure that Windows Installer is okay, and then get rid of any further system errors on your computer.
The first step to resolving this error is to "register" and "unregister" the Windows Installer on your system. This is a program which installs all the programs that you want onto your PC, and is constant on every Windows installation. The problem that often causes error 1721 is the way in which Windows often cannot read the Windows Installer program, because it's not "registered". Registering a program basically tells Windows where to look for it on your system, and it's often the case that this stored reference is either damaged or deleted by accident. To ensure this is not a problem, you need to be able to type the following into your system:

• Load up "CMD" (click "Start" > Run > type cmd)
• Type msiexec u/unregister
• Type msiexec /register
• Try reinstaling the program you wanted to

If you try this and find it does not work, then it's recommended you then use a program by Microsoft called the "Windows Installer Cleanup Utility". This is a new program which basically cleans up all the settings and options associated with the Windows Installer program; meaning that if you have any problems with the Windows Installer on your PC, they should be fixed. You may also wish to install Windows Installer 4.5, which will basically upgrade the Windows Installer program on your system, which should resolve many cases of the 1721 error.
It's also highly recommended that you use a "registry cleaner" to fix any of the errors that are on your Windows system. A registry cleaner is a type of software tool that basically scans through the registry database of your PC and fixes any of the problems that are inside it. The registry database contains all the settings, files and options for Windows, and is where everything from your most recent emails to your desktop wallpaper are kept. It's basically like a library for your system which is continually being used to help your software run correctly. Unfortunately, the registry is continually being damaged & corrupted, leading it to become highly ineffective and erroneous. To ensure this problem is not causing the 1721 error, you should clean through your system with a registry cleaner tool.

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

If you're reading the file from a CD-ROM, then either:
* the CD-ROM drive is reading incorrectly,
* the CD-ROM is scratched, and thus cannot be read 100% correctly,
* bad RAM in your computer, that "corrupts" the data being read from the disk into the RAM.

Replace the CD-ROM.
Replace the CD disk.
Download "MEMTEST86+", and run it, to test the RAM; replace, if necessary.

THE PROBLEM The Windows Error 2350 occurs when the installed version of the Windows Installer is too old for the MSI to execute. The registration entry for the engine has been damaged and all attempts to execute the MSI installation packages will not be successful.Errors on your system may be caused by invalid registry entries and outdated or corrupt drivers.
THE SOLUTIONTo fix the registration entry for the Windows Installer, the Installer service should first be registered then unregistered using msiexec /unregister and msiexec /regserver (Type both command in run) or the command line switches. The user will then have to restart Windows.

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]