I first consulted Andrew to sort out a security problem that I had with both my desktop and laptop, which he fixed rapidly, and at a very reasonable price. Whilst chatting I mentioned that I thought the desktop would need replacing before long, as it was struggling a bit and slow, given that it was running a 32-bit operating system on 4MB RAM. But Andrew mentioned to me the option of upgrading my desktop as the processor was pretty fast, which hadn't occurred to me as an option. So he did this recently, fitting a solid state drive in addition to my present hard drive, uprating the system to 64-bit and doubling the RAM. All done in a couple of days, leaving the computer with him to do the work. All I was left to do was reinstall the software which was quite straight-forward. Now my computer is as fast as a brand new one, at a fraction of the cost! Great. Certainly recommended.