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DiskSmartView vs PassMark DiskCheckup: catalog facts
DiskSmartView	PassMark DiskCheckup
Free Freeware from NirSoft, free to use and redistribute without charge.	Free Free to download and use.
Windows	Windows
Shows temperature, power-on hours and error rates Supports external USB drives	Shows SMART values alongside their thresholds Predicts when an attribute may cross its threshold
Official requirements stop at Windows 10 Supports IDE, SATA and USB disks only	Windows only Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License: Proprietary
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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