Any problems that you have with your machine, be they hardware or software, can be looked at and the problem can be diagnosed and either fixed immediately or advice can be given for what needs to happen next. If you have any machines or external hard disks that have a problem reading their stored data, then the hard drive can be taken away and data recovery can be attempted on it. Fixed price quotes are also available for problems like a virus or spyware infection where the utilities might take a long time to run, so there shouldn't be a need for you to leave your machine infected and slow, so that the other side can take advantage of your internet bandwidth.