Remove Koox System Optimizer (Uninstall Guide)


I got Koox System Optimizer  accidentally, I don’t know, how  it is installed, however since installed, it’s being start the computer scanning automatically, and then gives a error message that “Your computer has infected some of files, please reapir them immediately.” Then i tried to remove them infections then it wants it to purchase it first to repair those infections. I have tried unitnalling it from control panel, but Koox System Optimizer won’t uninstall. Please help me to uninstall it completely.

Solved Answer

Koox System Optimizer is an scareware program, that can installed into your computer while in the background of installing any other free softwares. It’s keeps scanning your computer and then found the FAKE infections on your computer, then it want to purchase that before repair infected files. So do not believe on their FAKE popups, alerts and error warnings, These all are completely FAKE.

In order to uninstall Koox System Optimizer  from your computer, you need to follow my all instructions carefully, which have already mentioned below.


Step 1 : Reboot your computer with “Safe mode with Networking” to Uninstall Koox System Optimizer from computer

  • Turn off your computer.
  • Turn back on your computer, immediately tap the “F8” key (pressing & releasing repeatedly “F8” Key) on your keyboard until you’ll get the advanced boot option (As shown on below screenshot). If you’re using Windows 8 then hold the “Shift” key while tapping the “F8” key.


  • Select the option “Safe mode with Networking” using arrow keys on your keyboard, then hit Enter button.


  • Windows will start in the safe mode with networking and then you’ll prompted that login into your account, so please login into your same account, which you’ve login usually. Then you’ll get your desktop with Safe mode.



Step 2 : Remove Registry infection, which have been infected by Koox System Optimizer.

First of all we need to repair registry keys value, so that we can run any program/tool so that we can able to begin a scan with one of anti-malware software and can be able to remove Koox System Optimizer completely.

2.1 : Download “Registry-Fix.reg” from below link.


2.2 : Double-click on that downloaded Registry-Fix.reg file to run it. (As shown on below screenshot)


Download : Registry-Fix.reg

2.3 : It’d prompt you below message, then click on Yes. (As shown on below screenshot)


2.4 : It’d give you another message, click on OK. (As shown on below screenshot)



Step 3 : Uninstall Koox System Optimizer from Control Panel

  • Click on Start button and then click on Control Panel.
  • Now click on Programs –> Program and Features –> Uninstall a program (Wind7, 8, Vista).
Uninstall a program image 1
Uninstall a program for Vista, 7, 8


  • For XP users click on Add/Remove Programs.
Uninstall a program image 2
Uninstall a program for Windows xp
  • You will get a window which have listed all the installed programs.
  • Uninstall Koox System Optimizer from there.

Step 4 : Remove Koox System Optimizer with Malwarebytes.

4.1 Download Malwarebytes.exe and then run a quick scan. If Koox System Optimizer will notify you that malwarebytes is a virus. Then please ignore it, because their all alerts are completely fake, do not belive on it. Just ignore that until it removed. After Removed, install a legitimate Antivirus.

3.1 : Download Malwarebytes Anti-Malware Free, then double-click on it to install it.

Click Here to Download >> Malwarebytes.exe


If above link haven’t worked, then click on below link to download malwarebytes-chameleon version. (Note: It’d download a zip file, zip file contained have lots of files, you can double-click on any one, It’d start malwarebytes-chameleon version)

How to use malwarebytes

How to use malwarebytes

4.2 : Update online Virus Definition

How to use malwarebytesHow to use malwarebytes

4.3 : Select the option “Perform quick scan”, then click on Scan.

4.4 : When the scan Finished, click on “Show results”How to use malwarebytes

4.5 : After clicking on Show result, it’ll give you a another window, where you’ll get a page named as “found threats”. Click on “Remove Selected” button to remove all the viruses which are selected.

How to use malwarebytes

Step 5 : Remove Koox System Optimizer with Hitman-Pro

Click here to Download Hitmanpro_x32bit.exe

Click here to Download Hitmanpro_x64bit.exe


Install Antivirus Protection on your computer immediately

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