Do you mean that it doesn't detect the cd/dvd rom? May i connect with you remotely to check this?
I sent you request for remote service. Please accept it then follow steps here to connect with me.
What is the full message it is giving?
Please tell me the make and model of this system
How old is the laptop?
What is E1?
Restart and repeatedly tap F2 key; then choose Security from the left pane and turn off Secure Boot; save and reboot. Then go to Advanced -> System Configuration -> and set it to CSM Boot if it is already on CSM Boot then set it to UEFI then press F10 key to save and restart. Then tell me what happens
Make sure there are no external devices connected to it.
Go to change boot order from Advanced and tell me what is set up as the first boot device ?
I am trying to help. If you don't want to continue i can request this question to be closed and refund issued. OR i can opt out for another expert.
I will request this to be done. Thank you and apologies for not being able to meet your expectations.