Lost Access to Microsoft Security Essentials or Windows Defender

By | mei 31, 2013
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When you try to open Microsoft Security Essentials or Windows Defender and you got the message “Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item.” then your computer is probably infected with the new variant of the ZeroAccess rootkit.

This rootkit wil change the “symlinks” Junction reparse point of Microsoft Security Essentials or Windows Defender. In the most cases it is not possible to remove or reinstall Windows Defender or Microsoft Security Essentials because you will receive a message like “An error has occurred in the program during initialization. If this problem continues, please contact your administrator. Error Code: 0x80073b01.”

The latest bèta release of HitmanPro will now detects and removes these modified Reparse Points so that Microsoft Security Essentials or Windows Defender will function again, for removal of this malware we advise to follow the below instructions.

ZeroAccess - ReparsePoints

ZeroAccess – ReparsePoints

Lost Access to Microsoft Security Essentials or Windows Defender

All tools used in our malware removal guides are completely free to use and should remove any trace of malware from your computer.
Please be aware that removing Malware is not so simple, and we strongly recommend to backup your personal files and folders before you start the malware removal process.

1. Run a scan with HitmanPro

Please download HitmanPro to your desktop from one of the following links
HitmanPro (32bit) – Direct download link
HitmanPro (64bit) – Direct download link

  • Double click on HitmanPro to start the program, if you are experiencing problems while trying to start HitmanPro, you can use the Force Breach mode.
  • To start HitmanPro in Force Breach mode, hold down the left CTRL-key when you double click on HitmanPro and all non-essential processes will be terminated, including the malware processes.
  • HitmanPro will start and you’ll need to follow the prompts (by clicking on the Next button) to start a system scan with this program.
  • The program will start to scan the computer. The scan will typically take no more than 2-3 minutes.
  • Click on the next button and choose the option activate free license
  • Click on the next button and the infections where will be deleted.

  • Click now on the Save Log option and save this log to your desktop.
  • Click on the next button and restart the computer.

2. Run a scan with Emsisoft Anti-Malware

Download the Emsisoft Anti-Malware setup program to your desktop.

  • Once the installation package has been downloaded, double-click on the EmsisoftAntiMalwareSetup.exe icon to install Emsisoft Anti-Malware.
  • If the setup program displays an alert about safe mode if you try to install Emsisoft Anti-Malware in safe mode, please click on the Yes button to continue.
  • You should now see a dialog asking what language you would like to use. Please select the language you wish to use and press the OK button.
  • In the next screen accept the License Agreement by checking the option “I accept the agreement” and click on the install button.
  • After the necessary files are copied, you will get to a screen asking the mode that you wish to use Emsisoft Anti-Malware.
  • If you want to use the freeware mode whitout protection choose this option, we recommend to use the 30 days free trial (within this option you can get the full version of Emsisoft Anti-Malware for free, click here for more information about the Emsisoft Referral Rewards Program.

  • You will now be at a screen asking if you wish to join Emsisoft’s Anti-Malware network. Read the descriptions and uncheck the options that you wish to use. When you are ready click on the Next button.
  • Next Emsisoft Anti-Malware will begin to update it’s virus defenitions.
  • When the updates are completed, click on the Clean computer now button. Emsisoft Anti-Malware will start to load its scanning engine and then display a screen asking what type of scan you would like to perform.
  • Please select the Deep Scan option and then click on the Scan button. The Deep Scan option will take the longest time to scan your computer, but will also be the most thorough. As you are here to clean infections, it is worth the wait to make sure your computer is properly scanned.
  • Emsisoft Anti-Malware will now start to scan your computer for rootkits and malware.
  • Please be patient while Emsisoft Anti-Malware scans your computer.

  • When the scan has finished, the program will display the scan results that shows what infections where found.
  • Now click on the Quarantine Selected Objects button, which will remove the infections and place them in the program’s quarantine.
  • If you see a messag like “Not all Malware objects have been quarantined, Do you want to place them in quarantine now?” click on “Yes
  • You will now be at the last screen of the Emsisoft Anti-Malware setup program, click on the button Close setup wizzard.
  • If Emsisoft prompts you to reboot your computer to finish the clean up process, please allow it to do so.
  • Please reboot directly your computer when Emsisoft Ant-Malware is finished to complete the installation process.

Information

Some of the programs that we used in our malware removal guides would be a good idea to keep and used often in helping to keep the computer clean. Malwarebytes Anti-Malware is one of the most powerful anti-malware tools. It is totally free but for real-time protection you will have to pay a small one-time fee. The license of Malwarebytes Anti-Malware is life-time so you have to buy it once, and because Malwarebytes Anti-Malware is a great addition to your regular virusscanner of security programs.

Choose a good internet security suite, Bitdefender’s Internet security 2013 is an excellent, user-friendly security suite, and with the autopilot technology there are no popups, no alerts or other messages because in this mode it will resolve almost every security issue on its own without the intervention of the user.

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