If the Pentium 4 chip you have runs 8/8.1/10 x64, it will run WIndows 11. Otherwise you need things like a Cedar mill Pentium 4 or Smithfield Pentium D upgrade.ThinkPad560X wrote: ↑Sat Oct 30, 2021 7:55 pmIt has been reported that Windows 11 will run even on a Pentium 4 HT and is probably the lowest you can install on. I did install Windows 10 Pro 64bit on the Pentium 4 HT (Prescott and Cedar Mill, socket LGA 775) These are the only P4s that will accept W8/8.1, W10 and 11 and support Nxbit and 64bit. But your maxed at 4GB RAM though.
And here, I can confirm on the laptop side of things, the 945 platform is the oldest platform that will run Windows 11.
Here, I have taken a Compaq Presario V3000 given to me for free, with a plain old 945GM chipset and Core duo T2050 and 512MB RAM. I then upgraded the BIOS and then the CPU to T7200 and RAM to max 3GB, and Windows 11 worked!
This is possibly good news to ThinkPad T60/T60p/R60 machines as it will work there too, though as whether you wanna put Windows 11 on those is another question.
The 945GM graphics and even the T7200 CPU already struggle badly in Windows 10, and Windows 11 only makes it worse with much more graphics intensive animations.
Here's the proof: https://www.reddit.com/r/Windows11/comm ... a_15_year/