my MSE (Microsoft Security Essentials) detected this Trojan:Win32/Colisi.Bbut when I clicked apply actions, the status states “not found” or “error” encountered. Even after it prompt me to restart my comp to complete the clean up, it still detected the Trojan:Win32/Colisi.B virus..any solution? please

Have downloaded microsoft essentials & we’re now having a problem. It has detected Trojan:Win32/Colisi.B and it says that it has removed it but every 15 minutes the pop up appears to say that it has been detected, I click the clean computer & it says that it has been removed. It is getting very annoying. We are on windows 7. Can anyone tell me how to get rid of  this Trojan:Win32/Colisi.B

What is Trojan:Win32/Colisi.B?

Trojan:Win32/Colisi.B is a notorious Trojan associated Browser Hijacker, Adware and Spyware. The common distribution methods of Trojan:Win32/Colisi.B include spam email, free download files, porn websites, and third party installer shared by third party websites. If your system get infected by Trojan:Win32/Colisi.B, your Registry will be hacked by the threat and unwanted changes will be made on your DNS and browser settings without permission. In consequence, Trojan:Win32/Colisi.B redirects you to advertising or spam websites when your surf the web. Besides, it can also deceive you to install rogueware which not only make system run terrible, but also need you to pay lots of money.

From search, our PC experts find that Trojan:Win32/Colisi.B communicates with remote server to help hijacker take over your homepage and search engine, and assist adware to generate tons of spam ads to harass you. Moreover, it can even set up a backdoor access, that means your PC will be easily attacked by more and more infections with help of Trojan:Win32/Colisi.B. Worse still, it may also facilitate hacker to invade your PC and put everything of you at severe risky, such as your files , personal information, accounts, and passwords. Longer the Trojan:Win32/Colisi.B lives on your system, these severe issues will happen sooner. Therefore, to protect your PC and avoid identity theft, you need to remove Trojan:Win32/Colisi.B as quickly as you can. If you cannot get rid of it on your own, follow the removal steps below to finish it quickly.

Steps for Removing Trojan:Win32/Colisi.B Virus

Trojan:Win32/Colisi.B Manual Steps (Experienced and skilled computer users can use this advanced Manual Removal method )

Step One. End malicious process related with Trojan:Win32/Colisi.B

Step Two. Remove unwanted plug-in related with Trojan:Win32/Colisi.B from Chrome, Firefox, IE and Microsoft Edge browser.

Step Three. Uninstall all Potentially Unwanted Programs related with Trojan:Win32/Colisi.B

Step Four. Find and delete all harmful registry files generated by Trojan:Win32/Colisi.B

Trojan:Win32/Colisi.B Automatic Steps (Good and easy for most of PC users to delete Trojan:Win32/Colisi.B )

Step One. Install SpyHunter to remove Trojan:Win32/Colisi.B virus and other hidden threats.

Step Two. Install RegHunter to fix all damaged registry files and make up the security exploits.

(Optional Step). Clean up all malicious codes and cookies of Trojan:Win32/Colisi.B from Chrome, Firefox, IE and Microsoft Edge.

Manual Steps (Experienced and skilled computer users can use this advanced Manual Removal method )

Step One. End malicious process related with Trojan:Win32/Colisi.B.

1. Open Windows Task Manager by pressing Ctrl + Shift + Esc keys together:

2. Find out the process related with Trojan:Win32/Colisi.B and click End Process:

Step Two. Remove unwanted plug-in related with Trojan:Win32/Colisi.B from Chrome, Firefox, IE and Microsoft Edge browser.

On Chrome

1. Click the Chrome menu on the browser toolbar.
2. Click Tools.
3. Select Extensions.
4. Click the trash can icon to delete Trojan:Win32/Colisi.B extension.
5. Make sure to remove all extensions you do not know or need.
6. A confirmation dialog appears, click Remove.

On Firefox

1. Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
2. In the Add-ons Manager tab, select the Extensions panel.
3. Make sure to remove all extensions you do not know or need.
4. Click Disable or Remove button of Trojan:Win32/Colisi.B.
5. Click Restart now if it pops up.

On Internet Explorer

1. Open the IE, click the Tools button , and then click Manage add-ons.
2. Click Toolbars and Extensions on left side of the window., and then select Trojan:Win32/Colisi.B
3. Make sure to remove all BHO’s you do not know or need.
4. If the add-on can be deleted, you’ll see the Remove option. Click Remove and then click Close. Otherwise click Disable button.

On Microsoft Edge
(Microsoft Edge browser still does not have extensions settings. Now we only need to reset search engine and homepage to keep web browser hijacker away from the browser)

1. Reset your default search engine to remove search engine hijacker virus.

Select More (…) on the address bar, then Settings:

Click View advanced settings:

Click <Add new> under “Search in the address bar with”, then input the search engine you like:

Now select the search engine you like and click Add as default:

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2. Reset your homepage page on Microsoft Edge to remove homepage redirect virus.

Select More (…) on the address bar, then Settings:

Under Open with, select A specific page or pages:

select Custom to enter the URL of page you want to set as homepage:

Step Three. Uninstall all Potentially Unwanted Programs related with Trojan:Win32/Colisi.B

1. Open Control Panel window.

Win 10 user – Right-click on the Windows Start button and choose “Control Panel” from the pop-up menu.

Win 8 user – Open the Settings Charm Bar by pressing Windows key + I key on your keyboard at the same time, then click on the Control Panel option

Win 7 / Vista / XP user – Click on the Start button to open your Start Menu, then Click Control Panel

2. In Control Panel, click on Uninstall a program under the Programs category

3. In the Programs and Features window, click Installed On to display the latest programs, scroll through the list to seek and uninstall Trojan:Win32/Colisi.B and other unwanted and unfamiliar programs that look suspicious.

Step Four. Find and delete all harmful registry files generated by Trojan:Win32/Colisi.B

1. Call out the Run window by pressing Windows + R keys together, and then type regedit and hit Enter key :

2. Find out and remove all harmful registry files related with Trojan:Win32/Colisi.B virus listed below:

(You may not be able to find out all files listed below as the virus keeps changing its files with name and path.)

HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Tracing\Muvic_RASAPI32

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Tracing\Muvic_RASMANCS

HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerMain “Default_Page_URL”

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\[adware name]

Automatic Steps (Good and easy for most of PC users to delete Trojan:Win32/Colisi.B )

Step One. Install SpyHunter to remove Trojan:Win32/Colisi.B virus and other hidden threats.

1. Click the blue button below to open of SpyHunter.

(Notes – SpyHunter’s free version can only help you detect malware or virus. If you want to remove the malware threats detected by SpyHunter, you will need to buy license of SpyHunter. If you do not need it any more, please follow instructions on SpyHunter uninstall)

2. On the page, please click Download Free Scanner to download SpyHunter safely and quickly.

Tips: After SpyHunter is downloaded, your Chrome /Firefox /IE may display such fake security warning ” This type of file can harm your computer. Do you want to keep Download_Spyhunter-Installer.exe anyway?”, which is generated by virus to cheat you, please just ignore the fake warning and click “Keep” button.

3. Once downloaded, please double-click SpyHunter-Installer.exe to start the installation of SpyHunter.

4. When SpyHunter is installed, it will be run automatically, then click Scan Computer Now to detect Trojan:Win32/Colisi.B related threats:

5. Once SpyHunter completes the scan, please click Fix Threats to get rid of Trojan:Win32/Colisi.B.

Step Two. Install RegHunter to fix all damaged registry files and make up the security exploits.

1. Click the green button below to open of RegHunter:

(Notes – RegHunter’s free version can only help you scan Registry errors or system errors. If you want to fix the errors detected by RegHunter, you will need to buy license of RegHunter. If you do not need it any more, please follow instructions on RegHunter uninstall)

2. On the page, please click Free PC Diagnosis to download RegHunter safely and quickly.

Tips: After RegHunter is downloaded, your Chrome /Firefox /IE may display such fake security warning “This type of file can harm your computer. Do you want to keep Download_Reghunter-Installer.exe anyway?”, which is generated by virus to cheat you, please just ignore the fake warning and click “Keep” button.

3. Once downloaded, then double-click RegHunter-Installer.exe to start the installation of RegHunter.

4. When RegHunter is installed, it will be run automatically, then click Scan for Registry Errors Now! to detect files corrupted by Trojan:Win32/Colisi.B:

5. Once RegHunter completes the scan, please click Repair All Errors to solve security bugs related with Trojan:Win32/Colisi.B.

(Optional Step). Clean up all malicious codes and cookies of Trojan:Win32/Colisi.B from Chrome, Firefox, IE and Microsoft Edge.

– Clean up cache and cookies by resetting Chrome

1. Open Chrome, then click “Customize and control Google Chrome” button, and then click on Settings

2. Under the Chrome Settings page, scroll down to the bottom, then click on Show advanced settings button

3. After clicking on Show advanced settings button, scroll down to the bottom and click on Reset browser settings button

4. A message box will pop up to inform that your browser settings will be restored to their original defaults, click Reset button when it appears:

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– – Clean up cache and cookies by resetting Firefox

1. Open Firefox, then click on Firefox button, then Click on Help button, then Click on Troubleshooting Information

2. At the Troubleshooting Information page, click on Reset Firefox

3. A message box will pop up to let you confirm that you want to reset Firefox to its initial state, click Reset Firefox button when it appears:

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– – Clean up cache and cookies by resetting IE

1. Open Internet Explorer, then click on Tools, then click on Internet Options

2. On the Internet Options window: click on Advanced tab, then click Reset button

3. A message box will pop up to let you confirm that you want to reset all Internet Explorer Settings, click Reset button when it appears:

4. When the resetting process is done, you’ll see this message box, click Close

5. You’ll need to restart your Internet Explorer to complete the resetting process.

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– Clean up cache and cookies on Microsoft Edge
1. Select More (…) on the address bar, then Settings:

2. click “Choose what to clear”:

3. Check the first three options and then click Clear:

If you have done each step above accurately, you can get rid of Trojan:Win32/Colisi.B virus completely. Hope you can solve the issue and get your healthy computer back. Good luck 🙂