If you believed Windows 11 needs a genuinely capable machine to run, a developer just challenged that assumption. NTDEV, a well-known figure in the Windows modification community, has gotten the new Windows 11 26H2 build running on a staggering 128MB of RAM — a tiny fraction of what Microsoft officially requires. The feat surfaced while NTDEV was developing a new tool, according to Neowin.
It’s another entry in a long line of low-spec Windows experiments, and it raises an interesting question: just how far can Microsoft’s recent OS be pushed before it stops working? Here’s what we know so far and why it might matter to you.
What NTDEV actually achieved
The headline figure is 128MB of RAM. That’s the total system memory Windows 11 26H2 was reportedly running on when NTDEV captured the result. To put that in perspective, 128MB is roughly one-32nd of the 4GB of RAM that Microsoft lists as the minimum requirement for a retail copy of Windows 11.
The developer was working on a new tool at the time, and the low-RAM run appears to have been a side effect of testing rather than the tool’s stated purpose. NTDEV hasn’t released full technical documentation on how the reduction was accomplished, so the exact method — which typically involves stripping out background services, disabling visual effects, and trimming system components — remains partly unverified.
128MB vs. the official requirements
Microsoft’s official system requirements for Windows 11 call for at least 4GB of RAM and 64GB of storage, alongside a 64-bit processor, a TPM 2.0 chip, and a fairly modern GPU. Those bars were set to ensure a usable experience on contemporary hardware, not to run on legacy or minimal machines.
128MB of RAM would have been ample for operating systems from the early 1990s, but it is virtually nothing by today’s standards. Even a lightweight Linux desktop typically wants several hundred megabytes to a gigabyte. A Windows 11 26H2 install running on 128MB therefore represents an extreme optimization effort, one aimed at squeezing the OS into a space it was never designed to occupy.
As a newer half-year version of Windows 11, 26H2 carries the same modern codebase and feature set as its predecessors, which makes trimming it this lean all the more unusual. Microsoft has not commented on the low-RAM run, and there is no indication it reflects an official direction for the product.
Who is NTDEV?
NTDEV is a developer active across Windows enthusiast communities, known for pushing the OS into unusual configurations and building utility tools along the way. Their work often targets people running older hardware, virtual machines, or specialized setups where every megabyte counts.
This isn’t the first time NTDEV has experimented with trimming Windows to its bones. The community has long followed efforts to create “lite” or stripped-down Windows builds that shed bloat and background activity. Running a current version like Windows 11 26H2 on minimal memory continues that tradition, albeit on a newer and more demanding codebase.
What this means for you
For most readers, this experiment won’t change how you use Windows. Microsoft’s retail Windows 11 will still expect a modern machine, and you shouldn’t try to install it on hardware with only 128MB of RAM as a daily driver.
But the underlying principle is useful. The techniques used to make Windows 11 26H2 run leanly — disabling non-essential services, cutting visual effects, and removing unneeded components — are the same tricks that can breathe new life into an older PC or make a virtual machine feel snappier. Enthusiasts with aging laptops or limited-VM environments may find inspiration here, even if they never adopt the exact configuration.
What you should do about it
There’s no official download or update that brings this configuration to you. NTDEV’s low-RAM Windows 11 26H2 is a custom, manually modified build, not something you can grab from Windows Update.
If you’re curious about running Windows more efficiently, start with the safe, supported options: adjust power settings, disable startup programs, and use the built-in Storage Sense and Performance tools. For those who want to go further, community-modified builds like the one NTDEV produced come with no official support and can introduce stability or security risks, so weigh those carefully before installing anything unofficial on hardware that matters to you.
Source: Neowin
Over to you: Would you attempt to run Windows 11 on 128MB of RAM, or is that too extreme for your setup?
