Tip: If the VM has no internet access, download these files on your host machine and pass them to the guest via an ISO file, a network share, or temporary USB emulation. Step 3: Sequence the Installation
According to VMware KB78708, you must ensure your legacy guest OS is patched to support SHA-2 code signing, or the driver signature verification will fail. Free Solutions for Installing VMware Tools (KB78708)
Resolving VMware Tools Installation Failures on Windows 7: A Free Guide to KB 78708
: This is the primary update that introduces SHA-2 code signing support. It is available for free via the Microsoft Update Catalog .
When to contact support
Historically, older operating systems relied on the to verify digital signatures for hardware and software drivers. However, due to inherent security vulnerabilities in SHA-1, Microsoft deprecated its use.
To fix this problem, you must bridge the cryptographic gap by manually installing the free Microsoft updates that add SHA-2 compatibility to your virtual machine. Step 1: Download the Prerequisites
The original request seeks information regarding a VMware knowledge base article (78708) for a free product. The provided content does not address this query.
Once the virtual machine has rebooted after applying the updates, try installing VMware Tools again. With the SHA-2 code signing support now present in the OS, the driver signature verification will succeed, and the installation should complete without errors. kbvmware s article 78708 free
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The primary solution, as documented in KB 78708, is to that add SHA-2 code signing support to legacy Windows systems.
addresses a critical issue where VMware Tools installation or upgrades fail on legacy Windows operating systems—specifically Windows 7 SP1 and Windows Server 2008 R2 SP1 . This widespread error occurs because newer versions of VMware Tools (version 11.1.0 and higher) use drivers signed exclusively with the SHA-2 encryption algorithm , which vanilla installations of these older Windows operating systems cannot verify without a free Microsoft patch.
VMware Workstation , Fusion, and vSphere ESXi environments hosting these specific guest VMs. Technical Error Symptoms Tip: If the VM has no internet access,
This article provides a comprehensive overview of why this happens and how to fix it without needing a premium support contract. The Root Cause: SHA-2 Code Signing
"Signature verification failed while checking the integrity of driver package 'x.inf'" or "Driver x.inf signed by untrusted root, will re-check."
Nevertheless, you can still access the official information for free through several reliable, legal methods:
VMware KB Article 78708 is a vital piece of the puzzle for anyone managing a virtualized infrastructure. By offering this information for free, VMware empowers administrators to maintain secure and efficient environments. Whether you are dealing with a minor bug or a major configuration roadblock, the Knowledge Base remains your first line of defense. It is available for free via the Microsoft Update Catalog