As you can see from above - I am not able to reproduce the issue - that doesn’t mean your issue doesn’t exist - but I have no idea what to suggest.
And technically this is a Windows issue - and I am - I once was but I am no longer - an expert with Windows.
Inside your Windows guest - remove the virtualbox guest utils
Click Start → enter appwiz.cpl in search → Enter
I should also point out - your Manjaro system is supposed to be up-to-date or your system will be in an unsupported state were neither I nor other members cannot be sure where the issue is buried.
Im still tinkering. I tried again, this time i installed the “experimental” 3d acceleration on the guest additions. I have always unticked that box as it always made the VM crash, it had been that way for literally years, but as i say, this time i tried with it ticked.
When i tried installing the up to date guest additions this time it never asked about those “mini” Oracle pop-up boxes, you usually get 2 of them, i always just clicked “install” - “Install” but this time it didnt even show them, but o well , i continued.
The first time i re-booted after the guest additions installed it booted but would not go to my normal screen rez, it remained at a very low rez and i couldn’t change it.
I rebooted it again and its seemed to work, with the 7.0.10 guest additions installed.
I rebooted again, it hung at windows boot screen again.
Tried again and it booted and is working fine again.
It has been working 100% since then, iv rebooted it many times, it looks ok. Fingers crossed.
Using buildskcripts from AUR assumes Arch package level - this has nothing to do with VirtualBox but the incorrect assumption that an AUR build package matches the version of VirtualBox on stable branch.
Issues with this is most likely due to using different versions.
The guest additions is build from AUR and this version may not be the same as the version available on stable branch.