Reclaim startup RAM
safely & reversibly.
An offline-first Windows desktop utility that reduces resource footprint by disabling unnecessary startup applications, background updaters, and system telemetry.
Product Highlights
Designed with safety, privacy, and full state-reversibility by construction.
Startup Autostart Control
SysGreen disables background autostart entries across diverse Windows subsystem vectors. It works directly with Windows registry Run keys, Startup folders, scheduled tasks, and packaged UWP apps.
RAM-Scoped Footprint
Focuses strictly on reducing resident memory consumption at startup. Measures the exact Private Working Set (memory unique to each process) for absolute transparency.
Offline Knowledge Base
Shipped directly with the application. Over ~86 verified rules evaluate publisher identity, app Purpose (Gaming, Updater, Telemetry), and safety flags. Unknown configurations default to Caution to keep your system bootable.
Reversible & Safe Changes
Disabling is done utilizing native system APIs rather than destructive deletions. Before committing a batch that alters boot-critical settings, SysGreen automatically creates a Windows System Restore Point.
Habit-Based Tracking
A lightweight tray agent observes launch recency. If an application isn't opened for 30 consecutive days, SysGreen highlights it as "Abandoned" and suggests disabling its startup footprint.
Secure Privilege Separation
SysGreen prioritizes OS-level safety. The user interface and Tray Agent run with standard, non-elevated user permissions. A short-lived elevated Helper process spawns strictly on-demand, executing only administrative registry adjustments before immediately exiting.
Latest from the blog
All posts →Introducing SysGreen 0.21.0
The first public release of SysGreen — a Windows desktop tool that reclaims startup RAM by safely and reversibly disabling the things that auto-start and sit resident after boot.
Read more →Safe and reversible by design: how SysGreen changes your startup
A tool that edits your system's startup configuration has to earn trust. Here's the design that makes every SysGreen change consent-first, least-privilege, and fully reversible.
Read more →