Kaspersky Small Office Security cannot be installed on Microsoft Windows 7 and Miсrosoft Windows Server 2008 R2 if the following updates are not installed:
Installation error occurs as a result of Microsoft having updated the algorithm for signing modules and drivers of third-party applications. Now modules and drivers of third-party applications (including Kaspersky) are signed using SHA256 hashing algorithm. You need to install updates for KB4490628 and KB4474419, so that Kaspersky Small Office Security modules and drivers could be signed using SHA256 hashing algorithm.
Use one of the following methods to install the updates.
Update installation using Windows Update
If automatic installation of updates is disabled on your computer:
Windows Update window opens.
All the necessary updates will be automatically downloaded and installed on your computer.
Manual installation of Service Pack 1 if it's not installed
If your computer runs on Windows 7 Service Pack 0 or Windows Server 2008 R2 Service Pack 0, first you need to install Service Pack 1 (KB976932).
To install Service Pack 1 update:
Manual installation of KB4490628
To install KB4490628 manually:
Manual installation of KB4474419
To install KB4474419 manually:
After updates are installed, restart the computer and install Kaspersky Small Office Security again.Page top