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Important Note

Microsoft security patch KB4512506 from August 2019 will affect Windows 7 boot behavior on HP Z840, HP Z240 and eventually other workstations.

After automatic installation of the latest Windows 7 security patch, the workstation might not boot anymore. The reason is a security patch which interferes with the loading of important windows files.

We recommend to follow Microsoft’s instruction: Install KB4474419 first and reboot the PC afterwards.

In case you experience the problem and your workstation doesn’t start after installation of KB4512506, please contact your local ZEISS service organization for a quick and system compatible solution of the boot problem.

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