Zamrzovanje explorer.exe in aplikacij

Imam težave z zmrzovanjem explorer.exe in nekaterih aplikacij. Pri nekaterih akcijah (predvsem desni klik z miško na določene aplikacije, mdr. cmd in še par drugih, s katerimi sem poskusil situacijo popraviti) Raziskovalec zamrzne, pokaže se mi kolesce. Ȍe pritisnem še enkrat, mi windows javi, da ima explorer.exe težave. Ȍe izberem ponovni zagon explorerja ali ga zaprem, se praviloma cel UI sesuje, vidim samo še sliko ozadja in pa lahko pritiskam Ctrl+Alt+Del (explorerja.exe mi ne uspe spet zagnati). Včasih (redko) se, če čakam res dolgo, explorer obnovi.

Edine omembe vredne akcije, ki se jih spomnim zadnji teden, so:

- namestil sem ubuntu kot sekundarni OS,
- namestil sem Microsoft Office 2013,
- nekaj dni sem imel težave z zamrzovanjem PC-ja (kolesce -> zvok utihne -> črn zaslon, zdaj je to zmrzovanje nadomestil pričujoči problem),
- patchal sem nekaj starejših iger (AoE 2, Diablo 1) z DirectDrawFixem, ki popravi grafične napake zaradi nezdružljivosti barvnih načinov z Win7 (glavni osumljenec, ker ima baje veze z ugašanjem explorer.exe, medtem ko špil laufa) - z AoE 2 je lepo delal, težave so se pojavile z Diablom,
- spremenil sem eno .uif sliko neke DOS igre v .iso sliko z nekim converterjem in jo mountal - kakršnakoli interakcija s sliko mi zamrzne explorer vsakič, ko poskusim kaj narediti z njo.

Vse programe sem pred uporabo preskeniral z NOD32.

Moj OS je 64-bitni Win 7, 2.4 Ghz procesor, integrirana grafična, 4 GB RAMa. Prosim, da mi kdo predlaga naslednji korak za vzdrževanje, ker se počutim, kot bi mi cel UI šel nekam, dosti aplikacij mi zmrzuje (tudi življenjsko pomembne, npr. NOD32 in CCleaner, odkar sem z njima poskusil narediti scan) in je moj računalnik neuporaben.

NOD32 scana na novo ne morem zagnati, ker mi zmrzne, preden lahko stisnem gumb. Sem pa cel računalnik scanal pred zelo kratkim.

SMART:

----------------------------------------------------------------------------
CrystalDiskInfo 2.7.5 (C) 2008-2009 hiyohiyo
Crystal Dew World : http://crystalmark.info/
----------------------------------------------------------------------------

OS : Windows 7 SP1 [6.1 Build 7601] (x64)
Date : 2013/02/25 22:15:03

-- Controller Map ----------------------------------------------------------
+ Intel(R) 7 Series Chipset Family SATA AHCI Controller [ATA]
- MATSHITA DVD-RAM UJ8C1
- ST750LM022 HN-M750MBB
+ AB0P8TJ1 IDE Controller [SCSI]
- CDSHSV MJOL6Z4LMFS SCSI CdRom Device

-- Disk List ---------------------------------------------------------------
(1) ST750LM022 HN-M750MBB : 750.1 GB [0-0-1, pd1]

----------------------------------------------------------------------------
(1) ST750LM022 HN-M750MBB
----------------------------------------------------------------------------
Model : ST750LM022 HN-M750MBB
Firmware : 2AR10001
Serial Number : S2USJ9DC709643
Total Disk Size : 750.1 GB (8.4/137.4/750.1)
Buffer Size : 8192 KB
NV Cache Size : ----
Number of Sectors : 1465149168
Rotation Rate : 5400 RPM
Interface : Serial ATA
Major Version : ATA8-ACS
Minor Version : ATA8-ACS version 6
Transfer Mode : SATA/300
Power On Hours : 1243 hours
Power On Count : 375 count
Temparature : 44 C (111 F)
Health Status : Caution
Features : S.M.A.R.T., APM, 48bit LBA, NCQ
APM Level : 0080h [ON]
AAM Level : ----

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr Raw Values Attribute Name
01 100 100 __0 00000000002A Read Error Rate
02 252 252 __0 000000000000 Throughput Performance
03 _89 _89 __0 000000000D83 Spin-Up Time
04 100 100 __0 000000000175 Start/Stop Count
05 252 252 __0 000000000000 Reallocated Sectors Count
07 252 252 __0 000000000000 Seek Error Rate
08 252 252 __0 000000000000 Seek Time Performance
09 100 100 __0 0000000004DB Power-On Hours
0A 252 252 __0 000000000000 Spin Retry Count
0B 100 100 __0 00000000002D Recalibration Retries
0C 100 100 __0 000000000177 Device Power Cycle Count
BF 100 100 __0 000000000017 G-Sense Error Rate
C0 252 252 __0 000000000000 Power-off Retract Count
C2 _56 _41 __0 003B000E002C Temperature
C3 100 100 __0 000000000000 Hardware ECC recovered
C4 252 252 __0 000000000000 Reallocation Event Count
C5 100 100 __0 000000000001 Current Pending Sector Count
C6 252 252 __0 000000000000 Uncorrectable Sector Count
C7 200 200 __0 000000000000 UltraDMA CRC Error Count
C8 100 100 __0 000000000940 Write Error Rate
DF 100 100 __0 00000000002D Load/Unload Retry Count
E1 _99 _99 __0 0000000034EA Load/Unload Cycle Count

-- IDENTIFY_DEVICE ---------------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 40 00 FF 3F 37 C8 10 00 00 00 00 00 3F 00 00 00
010: 00 00 00 00 32 53 53 55 39 4A 43 44 30 37 36 39
020: 33 34 20 20 20 20 20 20 00 00 00 40 04 00 41 32
030: 31 52 30 30 31 30 54 53 35 37 4C 30 30 4D 32 32
040: 48 20 2D 4E 37 4D 30 35 42 4D 20 42 20 20 20 20
050: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 10 80
060: 00 40 00 2F 00 40 00 02 00 02 06 00 FF 3F 01 00
070: 3F 00 C1 BF 0F 00 10 01 FF FF FF 0F 00 00 07 00
080: 03 00 78 00 78 00 78 00 78 00 00 00 00 00 00 00
090: 00 00 00 00 00 00 1F 00 06 0F 04 00 4C 00 48 00
0A0: FF 01 28 00 6B 74 09 7D 23 61 69 74 09 BC 23 61
0B0: 3F 20 54 00 54 00 80 00 FE FF 00 00 00 00 00 00
0C0: 00 00 00 00 00 00 00 00 F0 66 54 57 00 00 00 00
0D0: 00 00 00 00 03 60 00 00 00 50 F2 4C 05 08 BA 3E
0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 40
0F0: 1C 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 3F 00 00 00
1A0: 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 18 15 00 00 00 00 00 00 00 00 3F 10 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 01 00 00 04 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A5 3C

Diski so v celoti defragmentirani (mislim, da).

V varnem zagonu problemov nimam.

Scf ne najde ničesar.

Reinštaliral sem Diabla in očitno je res DDFix delal spore z explorer.exe. Odkar imam nepatchano verzijo, mi ob desnih klikih nič več ne zmrzuje. Hvala vsem za podporo.