Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to identify and resolve hardware failure issues [title] Try to identify bad sectors. [step] Bad sectors are sectors on a hard drive that can no longer be used. This may be due to permanent damage or the inability of the os to access them.

Ending1: If you find your system freezing, getting stop errors, or other errors this may be due to bad sectors. Use chkdsk and repair these problems. Ending2: Repair and correct the problem may be heavily involved. [title] Search for tools to resolve similar problems. Ending3: If this is the case, be sure to seek medical treatment in the event of a malfunction. [title] Check to see if the system is currently in working order. Ending4: [title] See what are the issues going on. [step] For example, if your graphics card cannot be used, you should see the problem.

Answer format: ending1/ending2/ending3/ending4