Full AtlasOS support is here
eclean now understands AtlasOS. Atlas Mode brings Atlas's own tweaks into the Optimizer and stops eclean from fighting settings Atlas manages.
eclean now fully supports AtlasOS.
If your PC runs Atlas, eclean detects it and switches into Atlas Mode, where the Optimizer treats Atlas as the owner of the settings it manages. If your PC does not run Atlas, nothing changes. eclean works the same as always and never requires it.
This one is personal. We built AtlasOS before we built eclean, and the standard that community held us to, document what you change and keep a route back, is the standard eclean was founded on. Full support is what that shared history should have meant from the start.
Why a maintenance tool needs to understand Atlas
AtlasOS is an open-source modification of Windows, applied once as a playbook. It reconfigures the system around performance and privacy, then steps back. Atlas transforms Windows. It does not maintain it afterward.
Maintenance tools are where that division gets dangerous. A tuner that does not know Atlas exists will offer to "fix" things Atlas changed on purpose. Re-enable this service, restore that default, undo that policy. Each fix is a quiet fight with a configuration you chose deliberately, and the loser is your system.
eclean used to handle this the blunt way, by warning you. Now it handles it the right way, by understanding what Atlas manages and working with it.
One Optimizer, two tabs
On a supported Atlas installation, the Optimizer splits into an Atlas tab and an eclean tab.
The Atlas tab brings Atlas's own configuration into the app. The 97 operations from the Atlas 0.5.0 playbook appear as regular optimizer cards, grouped by the same categories, searchable with the same filters, each linked to Atlas's documentation. Most are switches backed by Atlas's own scripts. Some are one-time actions, a few can only be configured in the Atlas folder, and where Atlas exposes no control at all, the card says so and links to the Atlas issue tracker instead of pretending.
The eclean tab keeps everything else, with one important change. Where an eclean optimization overlaps with something Atlas manages, the toggle is replaced by a read-only card marked "Managed by Atlas" that points you to the Atlas control instead. Atlas owns the setting, so eclean will not offer a conflicting switch. Quick Optimize also stays out of the way in Atlas Mode, because bulk-applying eclean defaults over a configuration Atlas built is exactly the conflict this work exists to prevent.
Changes made from the Atlas tab land in eclean's history like everything else, and you change them back where you made them, from the Atlas tab.
Supported means reviewed
Atlas Mode only turns on for Atlas releases we have reviewed. Today that means Atlas 0.5.0.
Review is the substance of this feature, not a label on it. For each supported release we go through Atlas's scripts at a pinned source commit and record every file in a signed manifest, hash by hash. Before eclean runs an Atlas operation, it verifies the script and its helpers against that manifest, checks their permissions, and refuses anything that has been altered. While an operation runs, eclean watches the Atlas folders and terminates the operation if the files change mid-run. Execution itself goes through the same reviewed privileged broker that carries the rest of eclean's elevated work.
If you run an Atlas release we have not reviewed yet, eclean says so plainly in the titlebar and explains your options. You can wait for our review, update Atlas if you are behind, or continue with standard eclean optimizations. If you continue, the app is upfront that doing so is unsupported and may conflict with what Atlas configured. What it will not do is guess.
The smaller touches
Support shows up outside the Optimizer too.
- An Atlas indicator lives in the titlebar whenever Atlas is detected, and opens a summary of what Atlas Mode is doing.
- The Atlas theme turns the app blue to match Atlas. It is on by default on Atlas installations and lives in Settings.
- Performance Mode prefers the Atlas power scheme when it is available.
- The Dashboard counts Atlas-managed settings toward your optimization summary instead of reporting them as work left to do.
- All of it ships in every language eclean supports.
What Atlas Mode is not
Atlas Mode does not install AtlasOS, does not modify how Atlas works, and is not a requirement to use either project. Atlas remains the tool for people who want to rebuild Windows and know exactly what changed. eclean remains everyday maintenance for the Windows you already run. On a machine with both, each now stays out of the other's way.
If you run Atlas, download eclean and open the Optimizer. If you are curious where the two projects meet, the story is on our AtlasOS page.