Windows: Guest Additions installation might fail due to missing certificate

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sorbet
Posts: 1
Joined: 6. Dec 2021, 06:15

Windows: Guest Additions installation might fail due to missing certificate

Post by sorbet »

Same problem here even with VirtualBox 6.1.30. Windows 7 guest on a Fedora 35 host.
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scottgus1
Site Moderator
Posts: 20317
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows, Linux

Re: Windows: Guest Additions installation might fail due to missing certificate

Post by scottgus1 »

Windows 7 needs to be updated to allow SHA256 security certificates, then the Guest Additions should install. Web-search how to add SHA256 certificate handling to Windows 7.
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