I have been working with computers mainly as a user since about 1976. I got my first 486 clone machine running Windows 98 back in 1999. Shortly after that I signed up with eBay and Paypal and quit sending out my radio correspondence by US mail and switched over to emails instead.
I had learned Microsoft DOS and was good at using it at the time. I would not try myself to go into a computer's registry to make any changes there. I don't know enough about it to do that. I used to buy and install on my own computers so-called maintenance and repair software like System Mechanic that claimed to be able to make repairs in a computer's registry and so forth but later concluded these offerings were phony and don't really do anything worth while for your money except may be somewhat entertaining to watch as they "run".
Cliff, sorry to hear that you had trouble with your new desktop. This past few days I did a lot of checking online to try to find a solution to the updating problem that showed up after I managed to get Windows 8.1 installed on the Gateway laptop. It turned out to be a common problem that many others were experiencing. I tried many of the suggestions but ultimately found they did not help or work. I just about gave up at one point intending to shelve the whole project but took one more try at it after reading that it was important to make sure and download the right type of update for one's machine. That is, in my case, an update written for a 64 bit computer and not one written for 32 bits. I must have been lucky on downloading a 64 bit version for the first update even though I had not specified that in my search for it. The second one I got must have been written for 32 bits as it would not install (not compatible) on my laptop. I was puzzled by this at the time. Later on, after I went back to try to download the second update file again, I specified in the search for it to be 64 bit compatible. This time this second update installed and shortly afterwards I found that updating on the laptop was working again (with the Windows 8.1 operating system).
I did read a brief mention of the fact that Solid State Drives do have a limited lifetime after which they may start to degrade. But Hard Disk Drives also can wear out and sometimes fail entirely. I wanted to try one of the new drives in the Gateway NV55S. 128GB is probably more than enough for my type of usage. Actually, like most types of memory, only 101GB out of the 128GB nominal rating is available for use. Right now, 72.4 GB out of the 101GB total is free.
73, Rod WB6FBF