installing guest additions

Sam1951

New member
I'm trying to install guest additions to a windows 7 ultimate guest. The host system is Linux Mint 22.1. The hardware is Asus Prime B450M AII, Ryzen_5_1400, Nvdia GT 710, 16 Gig Ram.
I think I have the correct version for the VB and Guest additions (7.1.6). The process gets about 2/3 the way through as halts with .... ERROR_AUTHENTICODE_TRUST_NOT-ESTABLISHED (-536870334/0xe0000242). I hope I typed that right, I can't get files in or out of the VM. Maybe I need guest additions to do that?
I have tried {bcdedit /set testsigning on} from an elevated command prompt in the guest. Also running VBoxWindowsAdditions.exe as admin and disabling Windows defender. Same error.
There are some log files but I don't know how to get them out of the guest. I tried setting up a shared folder but that's not working. The bi-directional clipboard also no go. The guest cannot see usb drives, I tried to set that up too.
I'm out of ideas, can anyone help?
 

My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    custom build
    OS
    Windows 7 Home Premium 64-bit SP1
    CPU
    amd fx-4350
    Motherboard
    ASRock 980DE3/U3S3
    Memory
    DDR3 16384 MBytes
    Graphics Card(s)
    NVIDIA GeForce GTX 650
    Hard Drives
    KINGSTON SA400S37120G
    Samsung SSD 870 EVO 500GB
    WD2500AAJB-00WGA0
    Antivirus
    microsoft security essentials
    Browser
    firefox
  • Computer type
    PC/Desktop
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