Preview Public download: January 2027
The desktop that's
secure from first boot.
AESURUS OS is a fast, modern operating system for the laptops people already own. It runs well on 4 GB of RAM, comes encrypted and protected, and feels familiar from the first click.
Everything you need.
Already set up.
Older laptops slow down, stop getting security updates and end up in a drawer. AESURUS OS gives them a second life with a clean desktop and protection that's on by default.
Encrypted from day one
The installer encrypts the whole disk on every install, and doesn't let you skip it. If a laptop is lost or stolen, your data stays locked. A 48-digit recovery key means you're never locked out, and you can make a new one at any time.
Protected while you work
The firewall and AppArmor are on, and security updates install automatically.
Private DNS
DNS lookups are encrypted, so public Wi-Fi can't see where you browse. Wi-Fi sign-in pages still work with one click.
Smart Ops
It tunes itself to your hardware at every startup and warns you before memory runs low. It never closes your work.
Data Saver
New Wi-Fi networks are treated as metered, large downloads wait, and you set a data budget.
AES-Office included
AES Write, AES Calc and AES Present open and save Word, Excel and PowerPoint files by default. Microsoft 365 web apps are one click away.
Make it yours
You can change the theme, accent colour, fonts, wallpaper, icons and panel layout. Our design is a starting point, not a locked box.
From power-on
to your desktop.
Real screenshots of AESURUS OS, taken during our automated install tests.
Ready for real work.
Straight out of the box.
Documents, spreadsheets, files and settings, all included and all in the AESURUS look. These screenshots come from AESURUS OS running in a virtual machine with just 1.5 GB of RAM.
Familiar, but sharper
If you've used Windows, you'll feel at home. A modern icon set and smooth Wayland graphics make it look sharp on any screen.
Built on a proven foundation
AESURUS OS is built on Debian, one of the most stable and trusted Linux systems in the world, with the KDE Plasma desktop. We add the security defaults, tuning, design and tools that make it ready for everyday use.
If you're online during setup, Chrome and Edge are installed automatically. Firefox is always included as a fallback.
| Base | Debian 13 “Trixie” |
|---|---|
| Desktop | KDE Plasma 6 on Wayland |
| Hardware | 64-bit Intel or AMD, 4 GB RAM or more |
| Boot | BIOS and UEFI, Secure Boot supported |
| Disk | Full-disk encryption + recovery key |
| Network | Firewall, AppArmor, DNS-over-TLS |
| Updates | Automatic security updates; data-aware on metered connections |
The road to 1.0
Private preview
A small group of testers runs AESURUS OS on real laptops and helps us polish it.
Public Preview
The first public download, open to anyone who wants to try it early.
AESURUS OS 1.0
The full release, ready for schools, students and small businesses.
Be first to try AESURUS OS
Join the Preview list and we'll let you know the moment the download is ready. Schools and businesses can ask us about deployment.