BSOD random on only 1 out of 4 users

I have a PC with 4 user accounts, 1 is admin, remaining no admin rights.
On admin account it sometimes BSOD's without any obvious reason. Unfortunately this happens daily.
It does it without any obvious program, sometimes even when not used.
It doesnot happen on other accounts.

Already replaced GPU (now MSI R9 270/ was ATi HD5770) and PSU (now seasonig 520W S12II Bronze) as i thought this was causing the issue and PSU was not powerfull enough for new GPU. SO my setup is as attached speccy pic.

I have tried several Registry Cleaners (Wise, Toolwiz and Ccleaner) but no luck so far. All drivers are up to date as far as i know. Unplugged and uninstalled unneccesary USB stuff (like webcam).
Also attached a zip[ file created by DM Log Collector.
Windows tells me it made dump files but whocrashed cannot find them and neither can i.

Hopefully you can help me out here to solve this.

sfc /scannow is already running as i type ;-)
Registry cleaners installed after getting so many BSOD's, i ran them manually, not automatic cleaning.
I did just the check and repair options, i'm not fooling around in the registry myself as i know what the effect can be.....

Just had another BSOD during sfc /scannow:

Gebeurtenisnaam van probleem: BlueScreen
Versie van besturingssysteem: 6.1.7601.2.1.0.256.48
Landinstelling-id: 1043

Aanvullende informatie over dit probleem:
BCCode: 4e
BCP1: 0000000000000099
BCP2: 0000000000029AE7
BCP3: 0000000000000002
BCP4: 0000000000029DE6
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Any helpfull to run chkdsk /f/r ?
attached new dump.

I ran sfc /scannow 7 times and now 2 days crahs free, hopefully it remains this way, solved for now.