Enforce per-folder size and file count limits at the kernel level. The folder quota system that Windows 10 and 11 should have shipped with — no ACL changes, no workarounds, Defender-safe.
DiskWarden fills the gap left by Microsoft's decision to restrict FSRM to Windows Server.
Intercepts file writes at the kernel level. When a folder exceeds its quota, writes are blocked instantly — no lag, no race conditions, no bypasses.
Set maximum folder sizes in bytes, KB, MB, or GB. Set maximum file counts. Both enforced independently per rule.
Block specific file extensions from being written to protected folders. Prevent users from saving unauthorized file types where they don't belong.
Prevent files from being renamed to bypass type restrictions. Extension protection ensures rules can't be circumvented by simply changing a file extension.
Inspect any file with SHA-256 hashing, entropy scoring, Authenticode signature verification, PE metadata analysis, process chain tracing, and timestomping detection.
Files that violate rules can be quarantined automatically. Browse, inspect, restore, or permanently delete quarantined files from a dedicated viewer.
Lock DiskWarden's configuration behind a password so standard users can't modify or disable protection rules.
Forward events via syslog, webhooks, email alerts, Windows Event Log, or JSONL files. Integrate with your existing monitoring stack.
Deploy and manage quota rules across multiple machines from a single console. Available in Business tier licenses.
Full UI localization in 41 languages with privacy-sensitive payment flows localized independently for each region.
DiskWarden doesn't modify permissions, ACLs, or security descriptors. It works alongside Windows Defender and other security software without conflicts.
Full functionality for 7 days. No credit card required. Try everything before you buy.
Lifetime licenses for personal use. Annual option for businesses that need fleet management.