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Windows 7: BSOD started randomly now consistent.

17 Jun 2013   #1

Windows 7 Professional 64bit
BSOD started randomly now consistent.

Hello, I got my first BSOD on the 5th of this month. I just started up my PC, it gave me the BSOD. I restarted and it didn't happen again and everything was fine, until today. I went to work, got home and noticed my computer was loading things on my browser very slowly. I did a restart and got a BSOD, I ran the repair recommended by Windows and it didn't do anything helpful. After it restarted from there I didn't get the BSOD but my internet speed seemed to be running very oddly. I was on a Skype call and it was just fine, however loading websites took way too long and when I tried to download files it was really slow (3.1MB files said would take hours). Anyway, after a few more restarts I finally started to get the BSOD after I was loaded into my profile for about a minute. I am currently booted into safe mode with no problems so far. I ran bluescreenview and it said ntoskrnl.exe was the driver causing the problems but I read that that is a default driver. However, the blue screens I received after loading into my profile came up with HIDCLASS.SYS as the error. I saw that it could be caused by USB or bluetooth driver.

I just find this whole thing odd because I had one BSOD on startup on the 5th then nothing all the way until today and now the new BSODs that are coming up after I load into my profile. Add the slow browser/internet and I have no idea what's going on.

Sorry for the novel, I just wanted to be as descriptive as possible. I was planning on just re-installing Windows but I thought I'd throw this up here in case there was an easier fix you folks found. Thank you.

My System SpecsSystem Spec
17 Jun 2013   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

Please disable driver verifier: Driver Verifier - Enable and Disable. Do not enable it until you are requested to.

Security App

Microsoft Security Essentials and Malwarebytes are recommended from a strict BSOD perspective. They do not cause blue screens on the system as other AV products do.

Microsoft Security Essentials, Free antivirus for windows and Malwarebytes Anti-Malware Free

information   Information
  • Do not start the free trial of MalwareBytes, unselect that option when prompted.

  • Update and make full scans with both separately.

Scan your system with the following:

Kaspersky TDSSKiller - How to remove malware belonging to the family Rootkit.Win32.TDSS (aka Tidserv, TDSServ, Alureon)

ESET online scanner - One-time virus scanner free with ESET online scanner

Start up

Keep less stuff at the start-up. Only anti-virus, this helps avoid driver conflicts and improves time to log in to windows.
Troubleshoot a Problem by Performing a Clean Startup in Windows 7 or Vista
How to Change, Add, or Remove Startup Programs in Windows 7

Hard Drive/Storage

Post disk summary using CrystalDiskInfo software: CrystalDiskInfo Standard Edition
  • For how to upload a screenshot or file, read here
Make a hard drive test from the hard drive manufacturers website: Hard Drive Diagnostic Procedure

For errors on your Hard drive(s): How to Run Disk Check in Windows 7

System Temperature

Ensure that there are no heat issues, For monitoring heat of the system use Speccy or HWMonitor


Run Memtest86+ for at least 8-10 passes. It may take up to 20 passes to find problems. Make sure to run it once after the system has been on for a few hours and is warm, and then also run it again when the system has been off for a few hours and is cold. How to Test and Diagnose RAM Issues with Memtest86+

Note   Note
Pay close attention to part 3 of the tutorial in order to rule the faulty RAM stick out.

Tip   Tip
Do this test overnight.

SFC /scannow to check windows for corruption:

How to Repair Windows 7 System Files with System File Checker
1. Click Start
2. In the search box, type Command Prompt
3. In the list that appears, right-click on cmd.exe and choose Run as administrator
4. In the command window that opens, type
sfc /scannow
and hit enter.

Keep us posted.
My System SpecsSystem Spec
17 Jun 2013   #3

Windows 7 Professional 64bit

First off, thank you for the reply and the information. My only concern about your post is that if it is necessary to use ~10 different anti-virus/anti-maleware programs to scan. I understand that different programs can pick up some things others can't but ~10 seems like a little bit of overkill. Anyway, if it's really recommended I use all of them then I will. Thanks again for the reply.
My System SpecsSystem Spec

17 Jun 2013   #4

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

Lol sorry, no need to run all of those :) I've modified my post.
Good luck.
My System SpecsSystem Spec
19 Jun 2013   #5

Windows 7 Professional 64bit

Hello, just an update. TDSSKiller came up clean, CrystalDisk said my drive was in good condition. Ran Memtest for 21 passes, no errors. Still runs fine in safe mode, tried a to boot it up in normal mode this morning just to see if anything changed and it froze once I logged in. At this point I think I'm going to get a new HDD (my current one is three years old) and just reformat. I don't really know what else could be causing the problem unless something in my explanation or this update caught anyone's attention. Thanks again for the replays koolkat, I really do appreciate it
My System SpecsSystem Spec
19 Jun 2013   #6

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

My System SpecsSystem Spec

 BSOD started randomly now consistent.

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