Question: how to fix disk read error occurred windows 7?
Answer: Press Ctrl + Alt + Del to restart” He was more worried about the data stored on the drive and was scared if the disk had failed. ... 
Unplug any USB or DVD drive. ... 
Reset/Update Your BIOS. ... 
Fix MBR and Fix Boot. ... 
Check your hard drives' cables. ... 
Test RAM memory. ... 
Try the Drive on another Machine. ... 
Conclusion: