I have come here on several occasions for different problems with my own computer and others, as well as a broken hard drive and a broken laptop. Myself being educated had already done a diagnosis and figured out the problem but CMO refuses to do any work without their own diagnosis. This operation is super expensive and does not garauntee they can even find what is wrong.
Somehow they are also "always busy" and your computer can take over a week to get to. You're better off looking for other local computer stores or personal workers.