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I installed windows 7 on Oracle Virtualbox. I Can't change the resolution. When I try, it shuts down and restarts windows 7. It works when 3D acceleration is off. (I have guest additions)

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    Did you build the Windows 7 machine? How did you manage to update it ? (Rhetorical question). Did you get it from someone else?
    – anon
    Commented May 15, 2023 at 0:32

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Try VirtualBox 6.1.x instead of latest 7.x version:
https://www.virtualbox.org/wiki/Download_Old_Builds_6_1

In my experience, 7.x still is rather unstable, especially when it comes to "3D Acceleration" and older Windows versions. Note that version 6.1.x is still maintained.

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  • Thanks! This worked!
    – iso
    Commented May 17, 2023 at 2:01
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Few months ago I also faced the same issue in virtualbox, after enabling the 3D Accelation it crashes everytime. And then I updated the Vbox to the latest version and it worked. If updating Vbox doesn't fix your issue, I would recommend you to update drivers of your Windows Host machine.

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