I bought a new desktop in late-January.
I have had some problems with freezes and crashes. I bought it at Best Buy; purchased a deluxe extended warranty (which includes tech support); and, six weeks after the purchase, I took it in last Friday [March 13]. I got sick to damn death of the freezes and crashes. (Never mind why I waited so long! Too much of a distraction.)
There is no problem with the internal parts. Turns out something in the way of infections. And what that means is that the Geek Squad supposedly cannot possibly know why that's the case (prior to their diagnosis, the consideration was with concern about drivers). So, I find myself now turned off by computers. I have the feeling they're being made rather inferior (by comparison to those which came out ten and twenty years ago). That the productions are rushing to meet their numbers … and they're hitting the stores anyway. (When I made my purchase, I switched to this computer after the one I initially bought had bad drivers not only on the specific computer but also on a second. I was told this Best Buy location might have received a bad batch of that other manufacturers' shipped computers. So, that's why I switched to my current one.)
I don't have a good feeling about this. First they said "drivers" then "infections."
It is very difficult to have driver problems on a brand new PC. "Drivers" are software that allows Windows to work with the particular hardware in your computer. In the Windows world, drivers are usually supplied by the manufacturer of the hardware, not Microsoft. So a new PC will ship with the drivers appropriate to the version of Windows installed when the PC leaves the factory, for the particular hardware in that computer. Drivers become problematic, typically, if you upgrade to a newer version of Windows, which may not work well with the old drivers on your computer (which were written for a different version of Windows).
Every copy of a particular model of computer is going to come with exactly the same drivers. It's not like you're going to get "bad" drivers on some of the computers and "good" drivers on others. If a manufacturer has somehow installed a bad driver (which is unlikely), virtually every copy of that computer is going to have the bad driver, not just some of them. And not just at one store.
The Geek Squad guy went right to the "drivers" excuse because drivers are, if fact, the single most common cause of freezes and crashes on Windows computers. But, as I said, they should not be an issue on a new computer, and they would not affect just some of the new computers and not others.
An infection is possible, but it sounds as if they did not find one (they would have told you if they had), and you would have had to acquire the same infection on more than one computer.
If you want to try to diagnose this yourself, start a thread here, and we will try to get to the bottom of it. It's awkward and slow to do it in a forum like this, but it can be done, if you are willing to work at it.