When comparing Acelogix RegBak vs WizTree, the Slant community recommends WizTree for most people. In the question“What are the best power user tools for Windows?” WizTree is ranked 16th while Acelogix RegBak is ranked 62nd. The most important reason people chose WizTree is:
Because it reads the master file table (MFT) directly from NTFS file system.
Specs
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Pros
Pro Store where you want
The disadvantage of Windows restore points is that they can not be stored on other drives than the system drive.
Pro Free
Pro Exceptionally fast for NTFS drives
Because it reads the master file table (MFT) directly from NTFS file system.
Pro Free
There is no limitation to using it.
Pro Multiple view such as tree view, tree map, extension view, file view
Unlike other similar apps, which usually only offer single view, this app offers multiple views.
Pro Handles "hard linked" files correctly - doesn't count them more than once
WizTree is faster and much more accurate than all the others as it properly handles hard linked files (doesn't count them more than once) so the total allocated size reported by WizTree will actually match the space used on the drive as reported by Windows.
Cons
Con Intended for NTFS only
It'll work with any other file system but with the same speed as any generic space analyzer.