Don't know 'Office Depot' but if they are anything like PC World... then fixing it yourself is the right thing... I've had 'recommendations' to replace hardware that wasn't in need of repair, and was lower specc'd though newer than the part that was "too old". Also had non-licensed software installed without request by a different shop. (I didn't take either machine in, but was involved in recovering the unsuccessful 'fixes').
OTOH, a good independent might give excellent service and have knowledgeable and enthusiastic staff ~ so experience of 'Box shifters' isn't the whole picture ~ and others have had problems fixed successfully too.
I used to get dozens of problems like that to fix (and some were a royal PITA, needing a full system re-install on a formatted drive to eradicate). The client would always say "it wasn't from AVG (or Panda, or Avast etc)... ...but I clicked on 'yes' and now my computer does strange stuff... No I didn't write down the error messages... Oh, for about 6 months now. ... What's a back-up?"
I've had some success with HiJackThis!, but it means taking the targetted machine offline for a few days so the advisors can pore over the logs, advise which AV/A-Spy stuff to attack the problem with. It is frequently not very intensive, but some types of infestation can be deeply buried, with rootkits and other adaptive and self-repairing behaviours.
< Message edited by Lieste -- 7/25/2012 1:36:16 AM >