When this approach makes sense
Prefer non-destructive observation first: verify free space, device health and the actual location of large files before deciding to change partitions. This guide explains how to approach scan disk for bad sectors without assuming every disk or license is identical.
How to proceed on Windows
- Step 1. Back up files before stressing a suspect disk.
- Step 2. Check SMART indicators using a suitable disk health utility.
- Step 3. Run the partition or disk Surface Test and record the result.
- Step 4. Replace a drive showing repeated I/O errors or increasing defect counts.
How to verify the result
The scan outcome and the drive health indicators are documented. Reopen Windows Disk Management to compare the resulting layout with the plan. If the operation involved the system disk, also confirm Windows starts and that your backup and recovery options remain available.
If the result is different
Stop and capture the error or unexpected disk map before retrying. Check the drive's health, file system, encryption status and available capacity. If files are missing or the disk appears RAW, avoid writing to the volume and consider an image-based recovery workflow.
Free versus paid edition
Some advanced functions, especially OS migration, boot media and data recovery, may require a paid edition. Verify the current MiniTool comparison page. This page does not claim every shown operation is included in every edition, and it does not claim to have tested a particular PC or storage device.
Frequently asked questions
How do I scan disk for bad sectors?
A surface scan may identify unreadable sectors but cannot reliably certify a disk against future failure. Start by checking the disk layout and creating a verified backup before applying any changes.
Can this operation cause data loss?
Yes, any partition or filesystem change can have risks from incorrect disk selection, power loss or hardware errors. Do not perform destructive write tests on a drive holding irreplaceable data.
How can I tell if the result is correct?
The scan outcome and the drive health indicators are documented.
References and further reading
- MiniTool Partition Wizard — version history
- MiniTool Partition Wizard Free — feature description
- MiniTool edition comparison
- MiniTool Partition Wizard product manual
- Microsoft — Disk Management
- Microsoft — BitLocker recovery key
Related Windows guides
- Check file system errors on NTFS
- Use disk benchmark on SSD
- Find large files with Space Analyzer
- Find duplicate files on PC
- Free up space on C drive
Need the Windows tool?
Verify the installer signature and choose the correct edition before modifying a disk.