Hi friends I need ur help i want to format my laptop but keyboard and CD drive are not working (uses on screen keyboard for typing, never had to use CD drive except for formatting so didn't repair it) tried USB formatting through pendrive but I can't access bios as keyboard not working. 6 months back a tech savvy guy formatted it & charged heavily for his services but he was never open to tell me how he did it. Now I need to format my computer again but don't want to incur huge service charges. Can anybody help me how to format
Laptop model HP probook 4430
Laptop model HP probook 4430