How to Fix Fix Error 0x80070034 — Wrong Disk in Drive on Windows
Getting error 0x80070034 during backup, restore, or disk operations? "The wrong diskette is in the drive" or media not found? Fix this disk/media access error.
Symptoms
You might be experiencing this problem if you notice:
- •Windows Backup fails with error 0x80070034
- •System Image creation reports this error code
- •File History backup fails referencing wrong media
- •Restore point creation fails with 0x80070034
- •Error when writing to removable media or external drive
- •Backup to network location fails with this code
Common Causes
- ⚠Backup target drive removed or changed during operation
- ⚠Drive letter reassignment confused backup software
- ⚠External drive firmware not responding correctly
- ⚠Backup set referencing media that no longer exists
- ⚠Volume shadow copy storage on wrong volume
- ⚠CD/DVD media error (if using optical backup)
Solutions
Solution 1: Fix Backup Drive Configuration
- 1Ensure backup drive is connected and accessible
- 2Check drive letter: Disk Management (diskmgmt.msc)
- 3If drive letter changed: reassign to original letter
- 4Right-click volume → Change Drive Letter and Paths
- 5Assign the letter your backup expects
- 6For network backup: verify network path is accessible
- 7Test: net use \\server\share (should connect without error)
- 8Retry backup after confirming drive access
Solution 2: Reset Backup Configuration
- 1If backup set is corrupted:
- 2Control Panel → Backup and Restore (Windows 7)
- 3Click "Manage space" → "View backups"
- 4Delete old corrupted backup sets
- 5Create a new backup from scratch
- 6For File History: Settings → Update & Security → Backup
- 7Remove current backup drive → add it again
- 8For System Image: select a different target location
Solution 3: Fix VSS and Disk Issues
- 1Reset Volume Shadow Copy:
- 2CMD as Admin:
- 3vssadmin delete shadows /for=C: /all
- 4net stop vss
- 5net start vss
- 6Check disk for errors:
- 7chkdsk C: /f (schedule for restart if system drive)
- 8Also check backup target drive: chkdsk E: /f
- 9If using external HDD: try different USB port/cable
- 10Ensure drive has sufficient free space for backup
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