Disks, free space and disk health
Free up space safely, read disk health, and repair file systems without making a failing disk worse.
- Level
- Intermediate
- Length
- About 35 minutes
- Contents
- 3 lessons · 1 video · final exam
- Status
- Published · updated 1 Oct 2026
Skills you'll practise
- Find what's using disk space and free it safely.
- Check disk health and recognise when to back up and replace rather than repair.
- Use chkdsk appropriately and understand when it needs a restart.
Course outline
- 1.Disks, free space and disk healthVideo · 5 min
- 2.Where the space wentLesson · 8 min
- 3.Disk health and file system repairLesson · 8 min
- 4.Reclaiming space without breaking WindowsLesson · 8 min
- 5.Disks, free space and disk health: knowledge checkKnowledge check · 19 questions
- 6.Disks, free space and disk health: practical exerciseKnowledge check · 1 question
- 7.C: drive full, updates failingScenario
- 8.Final exam6 questions · passing it completes the course, so people who already know the material can test out
Sources it draws on
The lessons and questions are written from these references, so learners can go back to the original.
- Microsoft Support: Free up drive space in Windows
- Microsoft Learn: chkdsk
- Microsoft Learn: Get-PhysicalDisk
- Microsoft Support: Manage drive space with Storage Sense
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