How can I uninstall au W21CA completely from my computer? This question is not only asked by you. Many computer users are also searching for the solutions to remove au W21CA from their computer systems. It's very easy to install a program, as what you need to do is to double click on its installer and follow its installer. But it becomes more complicated when you want to uninstall it completely from your computer, for you may run into various problems during the uninstallation process, such as strange error messages, failure to find it in Programs and Features. If you're searching for effective solutions to remove au W21CA, please check the uninstall methods below.

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 au W21CA (Recommended):

This Automatic Uninstaller will completely scan through the whole registry and hard drive and detect all files and components that belong to au W21CA. With this Automatic Uninstaller, uninstalling a program completely can be as easy as ABC for you in the future.

Manually Uninstall au W21CA:

Step 1: End all processes that are related to au W21CA

Step 2: Uninstall au W21CA

Step 3: Delete invalid entries of au W21CA in the registry

Step 4: Delete leftovers of au W21CA in hard drive

Step 1: End all processes that are related to au W21CA

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 au W21CA

You can uninstall au W21CA by any of the following uninstall methods:

Method 1: Uninstall au W21CA in Programs and Features

1. Open Programs and Features.

In Windows 7 and Vista,

Click Start menu, type in programs and feature and click on it to open.

In Windows 8 or later,

a. When in the "Start" screen, click Settings and type in programs and features

b. Click on Programs and Features from the Settings search results

2. Click on au W21CA and click Uninstall to uninstall it from your computer.

Method 2: Use System Restore to Uninstall au W21CA

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 3: Reinstall to Uninstall au W21CA

If some of program files that are needed to uninstall au W21CA are missing or corrupted, you may fail to uninstall it. Believe it or not, reinstalling au W21CA may do the trick. If you still keep the original disk or the download file of au W21CA, you can try that to repair the program. After repairing the program, you can try to uninstall it again.

Step 3: Delete invalid entries of au W21CA 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 au W21CA 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 au W21CA

Even you uninstall au W21CA in Control Panel and remove invalid keys in the registry, there are still some folders left in hard drive. To completely remove au W21CA from your system, you can go to the following locations to delete the folders of au W21CA.

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

Uninstall au W21CA using a Professional Third-Party Uninstaller

Many computer users don't like using the built-in uninstall utility in Windows Operating System to uninstall a program, because it often leaves behind some program files. Most of the time, a program will leave behind some files and keep your settings in your system. For example, some demo versions of program will leave some files saying that they have expired to prevent you from get another free trial again. Some programs even refuse to be uninstalled, as their publishers want to force users to keep using their programs or services. No matter what problem you run into during the uninstallation process, at this time, a professional third-party uninstaller is the best solution to completely get rid of an unwanted program, as it will forcibly and completely uninstall and remove any unwanted program off your computer with only a few clicks. Click and download this professional third-party Uninstaller now.