Minimum Driver Signature Requirements
Full driver package WHQL signatures are the best and most trusted by all versions of Windows. Windows allows the installation of properly WHQL signed drivers, without producing a prompt warning the user about the driver’s trustworthiness.
However, current Windows versions do not require WHQL signatures to allow installation. Lesser signatures (or no signatures in some cases) are allowed, but will generate user dialogs/warnings during the installation process.
Operating System |
Minimum Signature to Allow Installation |
Windows 2000 |
None |
Windows XP 32-bit |
None |
Windows XP 64-bit |
None |
Windows Vista 32-bit |
None |
Windows Vista 64-bit |
Embedded |
Windows 7 32-bit |
Embedded |
Windows 7 64-bit |
Embedded |
Windows 8 32-bit |
Embedded |
Windows 8 64-bit |
Embedded + Full package authenticode |
Windows RT (ARM) |
Third party drivers and driver packages are not currently allowed. All USB devices for this OS must use Microsoft supplied drivers. |
MLA - USB Library Help Version : 2.16
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