Svchost is just as its name implies, a
service host. It is provided by Windows to host one or more services under its process environment. That's why often times you'll see more than one svchost process running. You can check which services are hosted by that particular service host by grabbing
Process Explorer, then dbl-clicking the process and checking the
Services tab.
As for DV, can you try to get DV running again and let it crash once more, and provide us details present on the bluescreen? We'll need the bugcheck code, the 4 parameters in the parentheses next to it, and the name of the driver it says may be causing it.
Have you done a
memtest for 7+ hours, btw? You'll also want to do
Prime95 Torture Test overnight on Blend settings, followed by another overnight run on Large FFTs setting, regardless if the previous one crashed/failed or not. If Blend is good but Large FFTs fails/crashes, RAM-to-CPU crosstalk is bad; if vice versa, internal CPU caches are bad; if both fail or crash, there is a hardware problem, but it cannot be determined. Most likely it'll be RAM, Mobo, CPU or PSU that's causing it.
Because these crashes involve operations with PFNs, It may be a problem with RAM or disk we're dealing with. With the disk, if you have an SSD I'll assume you installed the firmware update for it as well as updates for your BIOS and motherboard software (sometimes it's best to remove Intel's storage drivers cause they can conflict). Some SSDs like Samsung have software that will test its integrity. Otherwise, you'll have to test stability by removing the SSD. If you have just HDD(s), you can test with
Seatools. I recommend running all tests (except Advanced). This is not a 100% guaranteed diagnosis of your drive, so it can still be bad if all tests pass, but it's very uncommon.
