Blue Coat Systems K9 Web Protection from windows 7 I have used Revo-pro several times and suggestions on the web. However I can't get rid of it. a new password does not arrive

uninstall it

just cut the file from C:\WINDOWS\system32\drivers\bckd.sys and past it on the desktop then restart the web browser it will work

1. Go to the Start Menu and click on "Control Panel"
2. Go to the "Programs and Features" section to remove the Blue Coat K9 Web Filter. If you have Windows XP, click on "Add or Remove Programs."
3. Locate the Blue Coat K9 Web Filter entry--the "Programs and Features" window will show you a list of all programs on your computer in alphabetical order. Scroll down until you find the Blue Coat K9 Web Filter and click "Uninstall."
4. Reboot your computer for the changes to take effect.

HW CAN I REMOVE OR UN BLOCK K9 WEB PROTECTION SO THAT I COULD BE ABLE TO SEE OTHER WEB SITES?

there are two methods you can try.
Method 1
If you have the administrator account password for the local computer and the best way to uninstall K9 web filter from the local computer is to re-install it! Re-install k9 web protection will simply get you a new license code and a new password you can enter without the need of old password.
1.Open K9 web protection website 2.Click "get K9 NOW" tab on the top-left 3.Fill out the information and your email. 4.Download the K9 Web protection software from the link included in the email and keep a copy of the license. 5.Grab a version of the K9 web protection installed on your computer, a Google search should do the job. 6.Open "Task Manager" by press (Ctrl+Alt+Delete) and end the process K9filter found in the "Process" tab. 7.Now, you can safely delete the K9 web protection program files. Open computer explorer and go to the folder where K9 is originally installed. It can be found mostly at C:\Program Files/Blue Coat k9 Web Protection. 8.Remove the contents of the folder but not the folder. 9.Run the K9 web protection setup/installer file which has the same version as the one you just delete 10.Provide the license and create your new password 11.Point the installation folder to the same folder you just empty the contents earlier on 12.Now you can have a re-installed K9 web protection with a password you know. How do you uninstall K9 web protection now? Use the new password you just created If something goes wrong, install the K9 web protection program downloaded from Step 4.
Method 2
Reboot Windows into safe mode: restart your computer and hold "F8? key until you see the menu to choose "Safe Mode" Login to windows and go to "Program Files" directory and delete the K9 folder manually (delete only the contents but leave the folder) Click "Start"->"Run" and type "msconfig" Check the tab "Services" and tab "Startup" Un-check anything that is related to k9 If somehow this method is messed up, try to download K9 again to at least restore your previous installation. If this still does not work, try to install Revo Uninstaller.
Here is a video tutorial

Click "Start" and open your computer's "Control Panel."

Click "Add or Remove Programs."

3Select "Blue Coat K9 Web Protection" from the list that appears.

Click "Change/Remove." Click "Yes" to confirm.

Enter your K9 password and click "Uninstall."

Click "Yes" to reboot your computer when the process completes.

2 Click "Add or Remove Programs."

3 Select "Blue Coat K9 Web Protection" from the list that appears.

4 Click "Change/Remove." Click "Yes" to confirm.

5 Enter your K9 password and click "Uninstall."

6 Click "Yes" to reboot your computer when the process completes.

Read more: How do I Uninstall K9 From the Local Computer? ' eHow.com http://www.ehow.com/how_6885359_do-uninstall-k9-local-computer_.html#ixzz1CpiGZfJL

open k9 web protection now

I found this on superuser link at the bottom.
No third party software required. Tested with K9 Web Protection version 4.4.268 on Windows Vista SP2 (32-bit). Confirmed by @stiemannkj1 to be working on Windows 7. Should also work on Windows 8.x.

1. Create a new text file. Copy and paste the following batch script code, then save:@echo off set keys=^ "HKLM\SOFTWARE\Blue Coat Systems"^ "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\k9filter.exe"^ "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Blue Coat K9 Web Protection"^ "HKLM\SYSTEM\CurrentControlSet\Services\bckd"^ "HKLM\SYSTEM\CurrentControlSet\Services\bckwfs" REM remove registry keys for %%G in (%keys%) do reg delete "%%~G" /f >nul set folders=^ "%programfiles%\Blue Coat K9 Web Protection"^ "%programdata%\Microsoft\Windows\Start Menu\Programs\Blue Coat K9 Web Protection" REM remove folders for %%G in (%folders%) do rd /s /q "%%~G" set files=^ "%windir%\System32\drivers\bckd.sys" REM remove files for %%G in (%files%) do del "%%~G" pause exit /b
2. Make sure file extensions are shown and rename it to RemoveK9.cmd (or whatever you like, as long as it has the .cmd extension).
3. Restart Windows in Safe Mode.
4. Right-click the .cmd file and select Run as administrator from the context menu. Wait for the batch script to finish.
5. Start regedit.exe and navigate to the following registry key:
   <code>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_BCKD Right-click the LEGACY_BCKD key and select Permissions from the context menu. Click Advanced and select the Owner tab. Then select Administrators from the owner list, tick the Replace owner on subcontainers and objects option, and then click OK. Then select Everyone and tick the Allow checkbox for the Full Control permission. Click OK, right-click the key and finally choose Delete.
   
   
6. Restart Windows.

How can uninstall K9 Web Protection without K9 admin password

Please try going into safe mode. And runnin malware bytes. Available through filehippo.com.

go to C:\Program Files\Blue Coat K9 Web Protection click once on license, then press delete button
go to http://www.k9webprotection.com/download/k9-webprotection.exe
then press run, press next, click i agree, click next
go to http://www1.k9webprotection.com/getk9/index.php
fill the form in, then check your email if you've got the license, then copy and paste the license into the installation, click next, then create your own password, then click next, click install
then it has the part where it says error opening file for writing.....
you click ignore, then go to manually reboot later
go to start, go to all programs, go to where it says blue coat k9 web protection, go to uninstall
click yes, then type the password that you made before, then reboot