How to Remove K9 Web Protection without Password?

remove k9 image

Blue coat k9 web protection is an open source software that can be used to block any website or type of websites on your computer and it also logs your Internet activity. It’s a very useful and robust application (you can’t remove k9 web protection easily without password) that can help administrator to regulate web browsing on his/her computer. It makes web browsing suitable for children at home, for employees at office and for students at colleges.

NOTE: I may refer to  “Blue coat K9 web protection software” as “k9 web protection” or “k9 protection” or just “k9″. They are same.

Why I am sharing these k9 removing hacks ?

If someone, an ex-employee or unknown person had installed it on your computer ? Of course you’ll not be comfortable with it or if  you want to visit a blocked website, you have to enter password each time that you don’t know. So, you can uninstall it but unfortunately again it will ask  password. It’s a crap  now I am going to provide you a few ways to remove it without password and administrator privilege. Note: Removing is different from un-installing.

Message: Please do not remove k9 web protection from your computers as your parents had installed it only for your welfare.

By-pass k9 web protection

If you want to visit a blocked website then you don’t need to remove k9, the quick solution is to open a proxy website and connect to required site. A proxy website is website that connects you to a specific website from their computers and provides the same functionality.

Click here to Access Blocked Websites with Proxy Websites.

If you want to remove k9 protection from your computer, you have to delete all working files of Blue coat K9 web protection but unless the program is running you can’t delete or modify any file and the rule is applied to most of  programs. K9 begins active when you start your system and you have to stop it.


Remove k9 by booting system in safe mode

Start your computer in safe mode. Safe mode is a troubleshooting option for Windows that starts your computer in a limited state. Only the basic files and drivers necessary to run Windows are started and therefore k9 doesn’t run automatically. Now you can remove k9 web protection by deleting its folder from C:\program files\Blue coat,  restart your computer in normal mode and you are free from k9 protection and now you can do unrestricted browsing.

Safe mode steps: Go to start then open ‘Help and Support’ or just press F1 on desktop and search ‘Start your computer in safe mode’.

If your are lazy or unable to find safe mode boot menu then there is a shortcut for you (NOT RECOMMENDED). Just power off your system directly (without shutting down) and you will be at Advanced Boot Options next time when you boot the system, choose safe mode and delete K9 folder. Simple!


Remove k9 by renaming it

Goto C:\program files\blue coat k9 web protection\ and delete as many as files you can delete, rename the remaining files (rename k9 filter.exe to k9 filter.xxxx ) change the extension so that it is no more remain an executable(.exe) file.

Now, goto C:\windows\system32\drivers  it may be D: or any other drive. You must locate to ..\windows\system32\drivers. Now look for the “bckd.sys” file
and move this file to a different folder then restart.

After restart, for safe play delete the remaining k9 files and log folder from C:\program files\blue coat k9 web protection\ folder and now you can enjoy unrestricted browsing.


Restoring your system to Remove k9

System Restore is a utility that helps us to restore our computer’s system files to an earlier point in time. It’s a way to undo system changes to our computer without affecting our personal files, such as e‑mail, documents, or any photo.

Now you have to restore your system to a date prior than when k9 was installed and it will completely remove k9 from your system.

Win 7 : Goto start > all programs > accessories > system tools > restore system

Win xp : start > run and paste the command  %systemroot%\system32\restore\rstrui.exe


Reinstall k9 Web Protection to Own it

Visit and fill the  License Request with your information (correct email necessary) and request it. Open your email, now you have a license, download k9 and run it, enter license and now k9 is yours.  Configure it and enjoy.


Himanshu Negi is a well coded tech package. He is a Computer Science student and Admin of this blog. His interest lies in Coding, Programming, Hacking and Everything related to Computers and Internet.

Filed in: Ethical Hacking Tags: ,

16 Responses to "How to Remove K9 Web Protection without Password?"

  1. Anonymouse says:

    This is just wonderful, no more of that dang dog showing up when ever i need to go on facebook or youtube.

  2. Noah says:

    Thank you, I think K9 Is a pain for all of us.

  3. Curtis Larson says:

    Thanks for the tutorial. My friend’s parents installed K9 on *HIS* computer. Next time I come to his house I’ll bring a printed copy of this page and kill that dog for good.

  4. dsfsfd says:

    Reinstall k9 and own it
    dont work!

  5. Himanshu Negi says:

    @dsfsfd @christopher

    You are right, not all the tricks work but you have to find out which one works for you.

    To get rid of k9 web protection you can use proxy websites (if not restricted) or you have to remove it’s working elements / files.


    Glad to know that you get rid of k9 protection. Thanks for commenting.

  6. IT MANAGER says:

    Nice tutorial, now I discovered solution to avoid this.
    1) Implement the CPU case padlock (IBM/Lenovo CPU usually have little part to enable the CPU casing to be locked)
    2) Intalled just reboot card (restores everything after reboot)
    3) Set user as “Limited User”
    4) Install K9 Web Protection
    5) Install antivirus & firewall.
    6) Do some policy editting in secpol.msc

    There you go….

  7. Jason says:

    Hi Himanshu

    I love the way you justify what you’ve done by saying that the tutorial’s use is for those situations where ‘someone else’ has installed K9 on a computer. What you’re really doing is helping to allow innocent children to fall prey to the dangers of the internet, whilst prevent parents and caregivers from protecting those in their care.

    K9 (and similar softwares) are not meant as “big brother” tools to limit the rights of individuals, but to help parent protect those they care about.

    Perhaps you should consider what might occur if someone you care about uses YOUR instructions to bypass protection and then falls prey to the perils of the internet. How would you feel then?

  8. Himanshu Negi says:


    I agree with you Jason but if you will search the web a little more you will get these tips listed on other sites and forums too. Believe me K9 is a pain when someone installs it on our computer and you don’t find the way to remove it.

    You had mentioned dangers of the internet, please use anti-virus, anti-malware and firewall on your computer they will protect you from real dangerous. K9 only prevents you visiting particular type of websites like social-networking (facebook, twitter, g+), hacking, adult .

    Ok I will display a message for children to not to remove k9 protection because it’s for their welfare.

  9. Shiri says:

    I used the Safe Mode tactic and now K9 blocked all internet access.

  10. Amit Rathore says:

    Hi Himanshu,

    I deleted the Blue Coat folder using Safe Mode and also delete the registry values and now facing bigger problem…
    K9 has blocked all internet access, i even cant access google :( :(

    • oh… Amit Rathore,

      Sometime it happens, k9 blocks complete Internet access or may be it was due to incorrect/inappropriate registry changes. You should try removing all files of k9 from your system or try cleaning computer for temporary files, cache & cookies, system restore may also help or otherwise if nothing works install the system again with fresh windows :)

  11. brenden says:

    uhmm what if this doesn’t work for us?

  12. Jóhannes says:

    …well, f*** !

    I can’t even click on the link to access proxy websites….k9 is blocking it !

    Can anyone help me here?

    By the way, I cant refresh the computer cause I need an password for that…

  13. Trey says:

    I bypassed it without even remembering it was there. I started dual-booting linux at the time. My parents didn’t know I did. My windows stopped working after resize, so I copied my files with linux and used the oem restore to reinstall windows. And before you say anything about removing from my parents, they had so many of the settings set, advertisements were blocked, and it was set to disallow the Internet for 1 day if I got blocked 5 times in 5 minute (which is one site because of the twitter icons, many ads, etc. ).

  14. Andree says:

    oooooof :((( i hate it!!! who invented this shit?!

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