07-22-2015 11:12 PM
07-24-2015 04:50 AM - edited 07-24-2015 04:52 AM
Welcome to the Forums
As per the query we understood that you are facing issue with system booting to auto repair option in your Lenovo Z510 laptop.
Remove the hard drive and reseat the hard drive and check for the issue. If still the issue persists then reinstall the operating system and check for the issue. if you are able to access your data please take a data backup before reinstalling the operating system.