BSOD when watching a video on YouTube, error 0x000000A1

How many sticks of RAM do you have. Errors are often detected after 8 passes too. The latest dumps does not reveal anything specific.

Upload a screenshot of your hard disk using crystal disk info and "Summary" tab using Speccy:

• Speccy - System Information - Free Download
• CrystalDiskInfo - Software - Crystal Dew World
• Screenshots and Files - Upload and Post in Seven Forums

Make a hard drive test from the hard drive manufacturers website:

• Hard Drive Diagnostic Procedure

Run these tools and delete anything they may find:

• Anti-rootkit utility TDSSKiller

ESET online scanner:

• Free Online Virus Scanner | ESET

Edit: The previous dump states what exactly is causing the BSOD-s so I need to know how many sticks of RAM you have and how many passes you took memtest for.

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1A, {8887, fffffa8003fd7fd0, fffffa8003fd3290, 604}

Probably caused by : hardware_ram ( ZEROED_PAGE_CORRUPTED )

Followup: MachineOwner
---------

3: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

MEMORY_MANAGEMENT (1a)
    # Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000008887, The subtype of the bugcheck.
Arg2: fffffa8003fd7fd0
Arg3: fffffa8003fd3290
Arg4: 0000000000000604

Debugging Details:
------------------


BUGCHECK_STR:  0x1a_8887

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

PROCESS_NAME:  dwm.exe

CURRENT_IRQL:  2

STACK_TEXT:  
fffff880`055567c8 fffff800`02e927ce : 00000000`0000001a 00000000`00008887 fffffa80`03fd7fd0 fffffa80`03fd3290 : nt!KeBugCheckEx
fffff880`055567d0 fffff800`02eb23fb : fffffa80`03fd7fd0 fffffa80`0a729ec8 fffffa80`03fbb260 fffffa80`0a729ec8 : nt!MiUnlinkPageFromLockedList+0x1de
fffff880`05556850 fffff800`02e9fed5 : 00000000`00000000 00000001`547ff860 00000000`00000000 fffffa80`0a729ec8 : nt!MiResolveTransitionFault+0x16b
fffff880`055568e0 fffff800`02e9e893 : 00000000`00153e62 000007fe`f9155124 fffff683`ff7c8aa8 fffffa80`0a729ec8 : nt!MiResolveProtoPteFault+0x325
fffff880`05556970 fffff800`02e8e549 : 00000000`00000000 000007fe`f9155124 00000000`039bf630 fffff880`00000000 : nt!MiDispatchFault+0x1c3
fffff880`05556a80 fffff800`02e800ee : 00000000`00000008 000007fe`f9155124 00000000`0027bc01 00000000`020db0e0 : nt!MmAccessFault+0x359
fffff880`05556be0 000007fe`f9155124 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiPageFault+0x16e
00000000`039bf618 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x000007fe`f9155124


STACK_COMMAND:  kb

SYMBOL_NAME:  ZEROED_PAGE_CORRUPTED

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: hardware

IMAGE_NAME:  hardware_ram

DEBUG_FLR_IMAGE_TIMESTAMP:  0

FAILURE_BUCKET_ID:  X64_0x1a_8887_ZEROED_PAGE_CORRUPTED

BUCKET_ID:  X64_0x1a_8887_ZEROED_PAGE_CORRUPTED

Followup: MachineOwner
---------

Thanks. Take them this way:

• RAM - Test with Memtest86+
• Guide to using Memtest86+ - Geeks to Go Forums

The goal is to test all the RAM sticks and all the motherboard slots.

Check your motherboard manual to ensure the RAM sticks are in the recommended motherboard slots. Some motherboards have very specific slots required for the number of RAM sticks installed.

If you get errors, stop the test and continue with the next step.

1. Remove all but one stick of RAM from your computer (this will be RAM stick #1), and run Memtest86 again, for 7 passes.
Be sure to note the RAM stick, use a piece of tape with a number, and note the motherboard slot.
If this stick passes the test then go to step #3.

2. If RAM stick #1 has errors, repeat the test with RAM stick #2 in the same motherboard slot.
If RAM stick #2 passes, this indicates that RAM stick #1 may be bad. If you want to be absolutely sure, re-test RAM stick #1 in another known good slot.
If RAM stick #2 has errors, this indicates another possible bad RAM stick, a possible motherboard slot failure or inadequate settings.
3. Test the next stick of RAM (stick #2) in the next motherboard slot.
If this RAM stick has errors repeat step #2 using a known good stick if possible, or another stick.
If this RAM stick has no errors and both sticks failed in slot#1, test RAM stick #1 in this slot.
4. If you find a stick that passes the test, test it in all the other motherboard slots.

If Part 2 testing shows errors, and all tests in Part 3 show errors, you will need to test the RAM sticks in another computer and/or test other RAM in your computer to identify the problem.

In this way, you can identify whether it is a bad stick of RAM, a bad motherboard, or incompatibility between the sticks.

Errors are sometimes found after 8 passes.
Do this test overnight, before going to bed.

How many sticks do you have?
Test the one stick in different slots. Do the same with all.

I see. Thanks for the update.

How many sticks of ram do you have?

Driver Verifier

Use verifier for 36 hours. Then send us the BSOD reports

Driver Verifier
I'd suggest that you first backup your data and then make sure you've got access to another computer so you can contact us if problems arise. Then make a System Restore point (so you can restore the system using the Vista/Windows 7 Startup Repair feature).

In Windows 7 you can make a Startup Repair disk by going to Start....All Programs...Maintenance...Create a System Repair Disc - with Windows Vista you'll have to use your installation disk or the "Repair your computer" option at the top of the Safe Mode menu .

Then, here's the procedure:
- Go to Start and type in "verifier" (without the quotes) and press Enter
- Select "Create custom settings (for code developers)" and click "Next"
- Select "Select individual settings from a full list" and click "Next"
- Select everything EXCEPT FOR "Low Resource Simulation" and click "Next"
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next"
- Select "Finish" on the next page.

Reboot the system and wait for it to crash to the Blue Screen. Continue to use your system normally, and if you know what causes the crash, do that repeatedly. The objective here is to get the system to crash because Driver Verifier is stressing the drivers out. If it doesn't crash for you, then let it run for at least 36 hours of continuous operation (an estimate on my part).

If you can't get into Windows because it crashes too soon, try it in Safe Mode.
If you can't get into Safe Mode, try using System Restore from your installation DVD to set the system back to the previous restore point that you created.
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