This is the most common question. The answer depends on how you define "safe."
The biggest gains are on HDD-based systems. Atlas OS 21H2 makes an old mechanical drive feel like a low-end SSD because it kills Windows Search, indexing, and telemetry logging. atlas os 21h2
Over 100 Windows services are disabled or set to manual. Examples include: This is the most common question
Atlas OS 21H2 is aggressive. It removes: Over 100 Windows services are disabled or set to manual
Standard Windows 10 has over 150 background processes at idle. Atlas OS 21H2 reduces that to under 35 processes. Removed components include:
The r/AtlasOS subreddit and Discord have over 50,000 members. The community praise focuses on: