Event ID 7 — Defective block detected on a disc

The disk subsystem reports a defective block.

Source of event

Disk — storage category.

Possible causes

• Disc Degradation
• Media problem
• Material failure

Verifications to be carried out

1. Save Important Data
2. Control SMART and manufacturer tools
3. Check if events are multiplying

Useful orders….

Get-WinEvent -FilterHashtable @{LogName='System'; Id=7} -MaxEvents 20

To be retained….

An Event ID must always be interpreted with its source, its full message, its timing and the context of the system. The same number may exist in several providers of events.