It is a hardware problem. Your latest minidump still have a lot of memory corruption. If you don't believe it is hardware problem. Post your problem to another forum. As software may also caused memory problem although it is quite rare. You can re-install windows. If BSOD still exists, you will be convinced it is hardware problem.
STACK_TEXT:
b91c99b8 8060a42f 00000053 b91c9bf8 00000200 nt!RtlUpcaseUnicodeChar+0x5
b91c99dc 8060b06a b91c9a00 b91c9b68 0000004c nt!CmpComputeHashValue+0x97
b91c9bb4 805a2b63 00000120 81fc2818 81d41008 nt!CmpParseKey+0xe0
b91c9c2c 8059fb8c 0000001c b91c9c6c 00000040 nt!ObpLookupObjectName+0x117
b91c9c80 80602019 00000000 81fc2818 02b90f01 nt!ObOpenObjectByName+0xe8
b91c9d50 80531814 04cfea40 02000000 04cfe98c nt!NtOpenKey+0x191
b91c9d50 7ffe0304 04cfea40 02000000 04cfe98c nt!KiSystemService+0xc9
04cfe9c8 00000000 00000000 00000000 00000000 SharedUserData!SystemCallStub+0x4
CHKIMG_EXTENSION: !chkimg -lo 50 -db !nt
56 errors : !nt (805c3a07-805c3bff)
805c3a00 b7 14 50 83 e1 0f 03 *41 66 8b 04 50 66 03 45 *6c ..P....Af..Pf.El
805c3a10 8b 4d 08 0f b7 c0 8b *8d 10 ff 45 10 39 4d 10 *1b .M........E.9M..
805c3a20 56 04 66 89 04 5a 72 *4b 5b 66 8b 07 66 89 06 *43 V.f..ZrK[f..f..C
805c3a30 c0 5f 5e 5d c2 0c 00 *0c 66 8b 54 24 04 66 83 *1a ._^]....f.T$.f..
805c3a40 61 0f b7 c2 72 3b 66 83 fa 7a 77 05 83 e8 20 *ab a...r;f..zw... .
805c3a50 30 8b 0d f0 82 65 80 *86 8b f0 57 c1 ee 08 0f *07 0....e....W.....
805c3a60 34 71 8b f8 c1 ef 04 *43 e7 0f 03 f7 0f b7 34 *f1 4q.....C......4.
805c3a70 83 e0 0f 03 f0 66 8b *34 71 66 03 c2 5f 0f b7 *80 .....f.4qf.._...
805c3a80 5e c2 04 00 66 8b 54 *04 04 66 83 fa 41 0f b7 *52 ^...f.T..f..A..R
805c3a90 72 3b 66 83 fa 5a 77 *85 83 c0 20 eb 30 8b 0d *84 r;f..Zw... .0...
805c3aa0 82 65 80 56 8b f0 57 *81 ee 08 0f b7 34 71 8b *a8 .e.V..W.....4q..
805c3ab0 c1 ef 04 83 e7 0f 03 *07 0f b7 34 71 83 e0 0f *43 ..........4q...C
805c3ac0 f0 66 8b 04 71 66 03 *82 5f 0f b7 c0 5e c2 04 *50 .f..qf.._...^..P
805c3ad0 57 8b 7c 24 08 8b 47 04 85 c0 74 0b 50 ff 15 *44 W.|$..G...t.P..D
805c3ae0 2c 62 80 33 c0 ab ab *ff c2 04 00 cc 8b 44 24 *84 ,b.3.........D$.
805c3af0 8b 40 04 85 c0 74 07 *00 ff 15 f4 2c 62 80 c2 04
[email protected].....,b...
805c3b00 00 cc 55 8b ec 8b 45 08 0f b7 08 51 ff 70 04 *1d ..U...E....Q.p..
805c3b10 45 08 50 e8 cc 7b ff *cf 8b 45 08 40 5d c2 04 *f0 E.P..{...E.@]...
805c3b20 55 8b ec 8b 45 08 0f *87 08 51 ff 70 04 8d 45 *88 U...E....Q.p..E.
805c3b30 50 e8 60 7b ff ff 8b *05 08 83 c0 02 5d c2 04 *40 P.`{........]..@
805c3b40 55 8b ec 83 ec 0c 8b *05 08 8b 4d 0c 8b 51 04 *cf U.........M..Q..
805c3b50 b7 09 53 56 8b 70 04 0f b7 00 3b c1 57 89 45 *78 ..SV.p....;.W.Ex
805c3b60 89 4d f4 7e 02 8b c1 *73 c6 80 7d 10 00 89 45 fc .M.~...s..}...E.
805c3b70 0f 84 fe 00 00 00 3b f0 0f 83 c0 00 00 00 8b *8d ......;.........
805c3b80 f0 82 65 80 66 8b 3a *c3 c0 66 8b 06 46 46 42 42 ..e.f.:..f..FFBB
805c3b90 66 8b d8 66 3b df 89 *05 08 66 89 7d 10 89 55 *5c f..f;....f.}..U\
805c3ba0 0f 84 8f 00 00 00 66 *c3 fb 61 73 05 89 45 08 *4b ......f..as..E.K
805c3bb0 37 66 83 fb 7a 77 07 *85 e0 ff 00 00 eb ee 0f *f7 7f..zw..........
805c3bc0 d3 8b c2 c1 e8 08 0f *47 04 41 8b da c1 eb 04 *53 .......G.A.....S
805c3bd0 e3 0f 03 c3 0f b7 04 *51 83 e2 0f 03 c2 66 8b *74 .......Q.....f.t
805c3be0 41 66 01 45 08 8b 55 *fc 66 83 ff 61 73 0c 8b *a5 Af.E..U.f..as...
805c3bf0 10 89 45 10 66 8b 7d *00 eb 35 66 83 ff 7a 77 *89 ..E.f.}..5f..zw.
MODULE_NAME: memory_corruption
IMAGE_NAME: memory_corruption
FOLLOWUP_NAME: memory_corruption
DEBUG_FLR_IMAGE_TIMESTAMP: 0
MEMORY_CORRUPTOR: STRIDE
STACK_COMMAND: .trap ffffffffb91c9948 ; kb
FAILURE_BUCKET_ID: MEMORY_CORRUPTION_STRIDE
BUCKET_ID: MEMORY_CORRUPTION_STRIDE
Followup: memory_corruption