Looking for a workable way to get OnIt Personal Firewall 3.0.1 off your system? There are always many reasons that make you want to uninstall programs from your computer from time to time. To keep your computer work properly, it's always a good habit to uninstall OnIt Personal Firewall 3.0.1 you haven't used for a long time. However, we cannot have everything we wish for. There may be also many problems that make you not able to uninstall OnIt Personal Firewall 3.0.1 from your PC, such as program errors, program not listed in Programs and Features, corrupted programs and so on. Therefore, to help you out, we've also worked out a few workable methods as well.

Possible Error Caused by Incorrect Uninstall Methods

Error example

The above error messages are all caused by incomplete uninstallation of related programs. Incompletely uninstallation of a program will leave some invalid keys in the system registry, which will cause such error pop-ups when the system still executes them.

Automatically Uninstall OnIt Personal Firewall 3.0.1 (Recommended):

This specialized uninstaller can not only help you uninstall OnIt Personal Firewall 3.0.1 from the computer effectively, but also identify and delete all leftover files, folders and invalid registry entries belonging to OnIt Personal Firewall 3.0.1.

Manually Uninstall OnIt Personal Firewall 3.0.1:

Step 1: End all processes that are related to OnIt Personal Firewall 3.0.1

Step 2: Uninstall OnIt Personal Firewall 3.0.1

Step 3: Delete invalid entries of OnIt Personal Firewall 3.0.1 in the registry

Step 4: Delete leftovers of OnIt Personal Firewall 3.0.1 in hard drive

Step 1: End all processes that are related to OnIt Personal Firewall 3.0.1

Hold Ctrl, Shift and Esc keys on the keyboard to open Task Manager. Then click on the related process and click End Process (in Windows 7, Vista) or End Task (in Windows 8) button.

Step 2: Uninstall OnIt Personal Firewall 3.0.1

You can uninstall OnIt Personal Firewall 3.0.1 by any of the following uninstall methods:

Method 1: Uninstall OnIt Personal Firewall 3.0.1 via Control Panel

1. Open Programs and Features.

In Windows 7 and Vista,

a. Click Start menu and click Control Panel

b. Select View by Category and click Uninstall a program

In Windows 8 or later,

Hover the cursor in the bottom-left corner of the screen, right-click on the Start button when a small image of the Start Screen appears and select Programs and Features

2. Click on OnIt Personal Firewall 3.0.1 and click Uninstall to uninstall it from your computer.

Method 2: Reinstall to Uninstall OnIt Personal Firewall 3.0.1

If some of program files that are needed to uninstall OnIt Personal Firewall 3.0.1 are missing or corrupted, you may fail to uninstall it. Believe it or not, reinstalling OnIt Personal Firewall 3.0.1 may do the trick. If you still keep the original disk or the download file of OnIt Personal Firewall 3.0.1, you can try that to repair the program. After repairing the program, you can try to uninstall it again.

Method 3: Use System Restore to Uninstall OnIt Personal Firewall 3.0.1

System Restore is a useful built-in utility that allows computer users to roll back to the previous state when the computer works properly. If you have a habit of creating a system restore point before installing a new program, you can roll back to this system restore point if this new piece of program is not up to your expectation or cannot be uninstalled from your computer properly.

Method 4: Uninstall OnIt Personal Firewall 3.0.1 via Virus Removal Tool

Some unwanted programs can install into your computer without being noticed, as they like to spread by attaching to free software and games that people often download online. Sometimes, you cannot remember when certain program was installed on your computer until you suffer a lot from its annoying pop-ups. Usually, this kind of potentially unwanted programs can escape from the detection of your installed antivirus. If you have tried the above methods but still fail to remove OnIt Personal Firewall 3.0.1, it's really necessary for you to check whether it's a virus or not. Click and download this powerful Virus Removal Tool to check your PC. If it's a computer virus, it will be automatically deleted when you click Remove after the scan.

Step 3: Delete invalid entries of OnIt Personal Firewall 3.0.1 in the registry

Video Guide: How to back up and edit the registry

Note: It's very important for you to know that the registry is one of the most important part of the Windows system, you should be extremely careful when deleting any keys in the registry. Any small mistake can result in severe problems or even system crash. So removing OnIt Personal Firewall 3.0.1 by editing the registry is only recommended to computer users with certain computer knowledge. If you don't want to take the risk to damage your computer system, it's recomended that you use this Automatic Registry Cleaner to clean invalid keys.

Step 4: End all processes that are related to OnIt Personal Firewall 3.0.1

Even you uninstall OnIt Personal Firewall 3.0.1 in Control Panel and remove invalid keys in the registry, there are still some folders left in hard drive. To completely remove OnIt Personal Firewall 3.0.1 from your system, you can go to the following locations to delete the folders of OnIt Personal Firewall 3.0.1.

C:\Program Files (x86)
C:\Program Files
C:\ProgramData
C:\Users\Default\AppData\Local
C:\Users\Default\AppData\Roaming

Uninstall OnIt Personal Firewall 3.0.1 via Automatic Uninstaller

Manually uninstalling OnIt Personal Firewall 3.0.1 cannot promise a 100% removal of OnIt Personal Firewall 3.0.1, especially for computer users with little computer knowledge. If you have tried the above manual uninstall steps but still cannot get OnIt Personal Firewall 3.0.1 removed from your system, it's very necessary for you to use this Automatic Uninstaller to do it for you. With only a few clicks, you can easily uninstall any stubborn program from your computer system.