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Windows 7: Critical error system shutting down

18 Jul 2012   #1

Windows 7 Professional 64-bit SP1
 
 
Critical error system shutting down

Microsoft Security Essentails detects 5 Severe Threats - system crashes while fixing.

Microsoft Malicsious Software Removal tool did not detect any problems in Qiuck mode - system crashed before detail mode could complete.

Windows Firewall will not turn on.

About to shut down'

My System SpecsSystem Spec
18 Jul 2012   #2

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

If it was a BSOD Please post from this tutorial:

http://www.sevenforums.com/crashes-d...tructions.html

Make sure to add the BSOD information so we can properly try to solve the problem.
My System SpecsSystem Spec
18 Jul 2012   #3

Windows 7 Professional 64-bit SP1
 
 

Down loaded BSOD tool - system shut down before 3rd file completed - will try again.
My System SpecsSystem Spec
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18 Jul 2012   #4

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by KCav View Post
Down loaded BSOD tool - system shut down before 3rd file completed - will try again.
Your problem is virus related. First we need to take care of that.

Use another computer to download Windows Defender Offline. Put it on a CD/DVD or bootable flash drive, and use it to find and eliminate your virus threats.

What is Windows Defender Offline?
My System SpecsSystem Spec
19 Jul 2012   #5

Windows 7 Professional 64-bit SP1
 
 
Critical error system shutting down (continued)

Followed the link you provided and down loaded Windows Defender Offline to Flash Drive; booted netbook from flash drive and ran Windows Defender Offline in Quick mode.

It detected:
- Virus: Win32\sirefef.r
- Trojan: Win32\sirefef.ah

It was blocked from removing them by Group Policy - Error code 0x800704ec. It placed them in Quarantine and said Remove Immediately. Then it gave the container files.

Since Microsoft Security Essentials discovered 5 suspicious items I decided to run Windows Defender Offline again in Full mode. Its running now.

Please advise next step.
My System SpecsSystem Spec
19 Jul 2012   #6

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Use the computer like normal, and see where that goes.

Also go ahead and try to do another BSOD report.
My System SpecsSystem Spec
19 Jul 2012   #7

Windows 7 Ultimate x64 SP1
 
 

Run WDO a couple of times after the full mode completes to make sure nothing is left. Then, boot up and do a complete scan with MSE.
My System SpecsSystem Spec
19 Jul 2012   #8

Windows 7 Professional 64-bit SP1
 
 

Full mode is still running its about 2/3 complete. Will run WDO again, if there are no changes will run MSE with setting to remove items from computer not just put them in quarantine?
My System SpecsSystem Spec
19 Jul 2012   #9

Windows 7 Professional 64-bit SP1
 
 

Its now 4:53PM. WDO has finished running and it found 5 Active severe files; ran Remove and WDO said applied your action successfully.

I have statred another Full scan.
My System SpecsSystem Spec
19 Jul 2012   #10

Win 7 32 Home Premium, Win 7 64 Pro, Win 8.1 Pro
 
 

Encyclopedia entry: Win32/Sirefef - Learn more about malware - Microsoft Malware Protection Center

Quote:
Caution: Win32/Sirefef is a dangerous threat that uses advanced stealth techniques in order to hinder its detection and removal. Particular variants of Win32/Sirefef may also make lasting changes to your computer that will NOT be restored - some system files may be irrevocably corrupted and essential security services may be disabled.

Due to the severe consequences associated with this threat, you may need to reinstall your Windows operating system and other computer programs, and restore your files and data from backup if your computer is infected with any of the following Sirefef variants:
Based on this, you may wish to consider a clean install:

Clean Install Windows 7
My System SpecsSystem Spec
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