The Acer Aspire 5551 is pretty much your average mid-range laptop from 2010. It shipped with Windows 7 Home Premium (some sources claim it was Home Basic) and official Windows driver support only goes from XP up to 7, further versions will install but won't have drivers catered to them.
During my curiosity regarding installing OS/2 Warp 4 on (too-new) native hardware, I found out that this laptop was the only one to not crash at the boot screen with a TRAP 000D. However, it ends up crashing with an error about how the drive is bigger than 8 gigabytes. Changing the SATA setting from ACHI to IDE emulation in the BIOS did not fix this. Further testing on a virtual machine shows that this has nothing to do with the drive, as I was able to get OS/2 to get past that and warn about something regarding partitions on a VirtualBox VM by plugging the laptop's hard drive on another computer via USB and then making a VMDK file that pointed to said drive.
Using VirtualBox, I decided to start off by installing a special version of Windows 98 called Redtoast, by Razorback. Originally I was considering Windows XP, but I already have three computers with XP installed, and I wanted something with the 95 user interface. NT 4 could have worked but I don't really want to deal with bugchecks about drives or something, and 98 has a lot of unofficial drivers anyways.
Installing OS/2 wasn't complicated, I basically had to just make a new 16GB partition. However, due to the laptop's quirk, I knew I would need to reconfigure OS/2 by installing drivers to make it bootable on it.
[this was never finished]