These .dmp files are for Windows crashing, not just the IE8 process - and a lot of them are bugcheck code 50 (memory_corruption). Minidumps are frankly useless for memory_corruption dumps, but in fairness sometimes even complete memory dumps are not good at helping analysis. I see this has been going on for some time - at this point, from seeing the rather random bugcheck codes other than the 0x50 memory_corruption dumps, one of three things are happening - one, the Windows install itself is corrupt in some way (possible, but not likely); two, you have a driver (or drivers) on the system corrupting the page table entries causing Windows to not be able to map virtual addresses to physical pages in RAM or on disk causing the crash (much more possible, and likely); or three, you have potentially an issue with the RAM or other hardware in your system causing these crashes (possible, although likelihood depends on how much updating drivers and BIOS, if possible, affect the system's stability afterwards).
