Terry came into work and turned on his computer. During the boot process, the computer shut down. When he tried again, the computer showed the error message, OS not found. Terry called the help desk and explained the computer issue. The help desk technician goes to Terry's office and verifies the problem. What are some things the help desk technician could check or try? Select three. a$.$ CMOS battery b$.$ Device boot order c$.$ Properly seated RAM d$.$ Use Window Startup Repair e$.$ P$1$ power connection f$.$ SATA cable connection