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W10Privacy vs Optimizer: catalog facts
W10Privacy	Optimizer
Free Offered as a free download.	Free Free and open source, no longer developed.
Windows	Windows
Brings scattered Windows privacy settings into one overview Covers settings for built-in apps such as Edge	Many privacy and performance tweaks in one portable program Available in 24 languages
Windows only Website is in German	Deprecated and archived; the author points users to OptimizerNXT System tweaks such as stopping updates or disabling Defender can leave Windows less secure
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.