GoKawiilAn IBM ThinkPad user boasts that they can install “(almost) all versions of Windows from NT 4 to 10 22H2,” with driver support, without resorting to virtual machine (VM) technology. The ThinkPad T43 from 2005, used by Redditor MatiHalek, was already a firm favorite among retro tech enthusiasts and well known for being IBM’s final design prior to the Lenovo acquisition. The confirmation that it can run 26 years of Windows OSes certainly adds to the T43’s considerable charms.
So, what did Mati actually do? In the post embedded above, you can see they posted a gallery with 10 Windows screenshots, most of which show an iteration of the System > About control panel as evidence of the version of Windows installed and running. This gallery will take many readers on a journey down memory lane as the Windows UI evolves through the eras.
Mati says that they didn’t use VMs to install any of these Windows versions. They were all real software-to-metal installs on the single-core Pentium M CPU, though it wasn’t always an entirely straightforward process getting Windows to behave. We’d assume most difficulties would be due to support and drivers for graphics and storage interface hardware.
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The Redditor didn’t install the 26 years of OSes sequentially in a strictly experimental fashion. “When I got this laptop, XP was installed, so I decided to dual-boot Vista with that XP. Then I did the upgrade path Vista-7-8-8.1-10RTM,” they explained. Subsequently, Windows 22H2 wrinkles forced them into doing a clean install for this pretty recent OS from Microsoft. However, modern OSes don’t appear to be Mati’s passion as “after that, I wiped the hard drive and multi-booted 98, NT 4, and 2000.” They end their post by indicating they will be keeping this 20th-century OS trio on the IBM ThinkPad T43, simply out of preference. It's probably the most responsive choice, given the hardware.
IBM ThinkPad T43 hardware
As we mentioned in the intro, the ThinkPad T43 was the final laptop from IBM’s stables, before Lenovo took the reins. Mati was correct to assert that it originally shipped with Windows XP, and it launched just a few months before Vista hit the scene.
Key components of the T43 were as follows:
Intel Pentium M processor
ATi Mobility Radeon X300 or X300SE graphics
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