BSOD before log in to windows & during use

Hi xxgiga.

This info is obtained from your event log: A couple of times .....

Event[22043]:
Log Name: System
Source: Service Control Manager
Date: 2014-05-03T12:09:15.262
Event ID: 7026
Task: N/A
Level: Error
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: Lydia-PC
Description:
The following boot-start or system-start driver(s) failed to load:
AFD
aswFW
aswRdr
aswSnx
aswSP
aswTdi
cdrom
CSC
DfsC
discache
NetBIOS
NetBT
nsiproxy
Psched
rdbss
spldr
tdx
Wanarpv6
WfpLwf
{f9d2f209-1697-4837-85f2-d88e4c9f7c81}Gw64

And this one .... a number of times .....

Event[22301]:
Log Name: System
Source: Service Control Manager
Date: 2014-05-03T13:24:04.762
Event ID: 7026
Task: N/A
Level: Error
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: Lydia-PC
Description:
The following boot-start or system-start driver(s) failed to load:
cdrom

Five drivers marked in red are drivers from Avast antivirus. They may cause an issue during boot. That is detectable, with a little risk of security; by disabling avast in startup.
Free up the startup.

1. Click on the Start button
2. Type “msconfig (without quotes), click the resulting link. It will open the System Configuration window.Click the "startup" tab.
   
   • Click "Disable all" > Apply > OK.Click on "services" tab.
   • Check the "Hide all Microsoft Services"; Click "Disable all" > Apply > OK
3. Accept then restart.

Then try to boot again normally. Is it failing still?

If not, then Avast may have something to do with the BSODs.

But if still the result is the same, we have to concentrate on the CDROM part. First of all, make it sure that there is no disc in the Optical Disc Drive.

Then boot into safe mode with networking, and Download and install CCleaner. Then run it.
Go to "Tools" .... by default it will open the "uninstall" tab.
Click on save as text file. Save it on your desktop.
Upload the text file for us.

Hi Arc, first of all coincidentally this morning i could turn on my computer nicely without any problem (this 'nice thing' happens once/twice sometimes, like a russian roullette) but I still try your suggestion to disable all in startup and restarting, it turned out just okay and I can enter desktop. And then I restarted again to go into safe mode with networking, and do what you said. I uploaded the text file from CC cleaner already.
also fyi, I dont have any cd/dvd rom in my cpu. I just didnt buy it in the first place.... so it's weird that the cdrom showed up in the error log..?

Btw when is the services at startup can be enabled again? is it okay being disabled like this?

Yes, I checked in depth.

You dont have any optical disc drive. cdrom.sys is disabled there. No program is installed that can emaluate a cd rom virtually. So definitely it is odd.

If you keep the services and programs disabled in startup, it will not hamper anything. The antivirus is the only program that should not be kept disabled. It should run alongwith windows.
But apparently the antivirus is probleming at startup.
Plus, a disabled driver is also probleming, which is odd.

Scan the computer using Kaspersky Rescue Disk. Kill all the threats, if found. Then enable Avast back with startup.

It it starts to BSOD again, let us know. :)

A RAM failure can cause any issue.

First make it sure that the RAM is compatible. ECS Web Site > H61H2-M12 (V1.0)

If not, we have got the result. But if supported, test your RAM modules for possible errors.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest for at least 8 passes, preferably overnight.

If it start showing errors/red lines, stop testing. A single error is enough to determine that something is going bad there.