Luiz methodically trouble-shot my 4 yr-old desktop HD in an effort to re-set it and recover data when it stopped working. That did not succeed since the HD had failed. Fortunately, I subscribe to a "cloud"-based backup service, and all the data was recoverable. Luiz recommended installing a SSD, which he kindly purchased, and I reimbursed the cost. He then installed it in my computer and transferred all the recovered data to the new HD; he tried for several hrs to recover data from the old HD (unsuccessful). He then came back on site and installed software, apps, and reconfigured the monitor display/computer to the way it looked and worked before, and he re-set my emails. He was exceedingly patient and pleasant on both visits and clearly knew precisely what he was doing. I would highly recommend him to anyone who needs this type of service and certainly would have him do computer work for me again, if needed.