I initially tried installing KIS 2013 from a CD that I had purchased last year and I received a message saying that the Digital signature of installation files is missing. I clicked the Learn more link and eventually ended up downloading the 2014 version from the website just to have the exact same message. When I view the Digital Signature tab of the kis14.0.0.4651en_5450 it tells me that 'One of the countersignatures is not valid. The file may have been altered.' The only countersignature is the COMODO Time Stamping Signer.

If you received this error during program installation, then do the following: 1. Check distributive digital signature. Check the authenticity of the downloaded installer. If the digital signature is not valid or is damaged, do the following: Download the program distributive from the Kaspersky Lab site: In the open window click Save. You cannot install Kaspersky software because it say Digital signature of installation files is missing, and. What do i do to remove Digital signature of installation files is missing kaspersky 2015? This is a very common problem with obsolete OS's like.

When I view the certificate inside the details of the COMODO signature it says 'The timestamp signature and/or certificate could not be verified or is malformed.' I have tried running as administrator, using the troubleshoot compatibility tool, deleting toolbars, going into the task manager and shutting down all non-essential processes, nothing seems to make this install. What do I do?

Here is the GetSystemInfo report. Forget about the CD, please remove it from the disc drive.

Optimizer Pro is installed, please uninstall that. Clear your temp files: Are you able to connect to windows update? If so, please check for updates and look for.net framework 4.5 you can also download and install it. After the above, please download KIS 2014 from here: Activate with the code from the 2013 disc. Reboot, update and reboot. Uninstalled Optimizer Pro, deleted Temp files, installed.net framework 4.5 and then re-downloaded the KIS 2014 file.

Fake Nhs Letter Template on this page. I have never gotten to the point of being able to use an activation code, I get the exact same error very shortly after loading up the installation file. Here is a new report: Also it may be worth noting that as soon as the download completes it identifies it as having signature problems, I am attaching a screen shot.

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