David has done a few repairs for me now and I finally followed his recommendation to install a new hard drive. I lost track of how old mine was. I didn't bother comparing prices as David's prices are always fair. What the new installation of an SSD has done is remove all the irksome problems I was having- slow connection to the internet on startup and also slowness of programs to get going, pages not responding, and constantly losing my internet connection. I couldn't be happier. The new SSD is so fast.

Approximate cost: $150