Are you seeking for a feasible way to completely get rid of and uninstall avast? If you're having some trouble doing that, here is the right place to help you thoroughly uninstall avast. If avast is corrupted or damaged, the best way to get it work properly is to uninstall it and then reinstall it. But what can you do when you receive error messages during the uninstallation process or when you can't find it in your Programs and Features? Now, in order not to make your situation worse, please stop trying your own methods to uninstall avast, and follow the listed professional methods to remove avast.

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 avast (Recommended):

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

Manually Uninstall avast:

Step 1: End all processes that are related to avast

Step 2: Uninstall avast

Step 3: Delete invalid entries of avast in the registry

Step 4: Delete leftovers of avast in hard drive

Step 1: End all processes that are related to avast

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 avast

You can uninstall avast by any of the following uninstall methods:

Method 1: Uninstall avast 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 avast and click Uninstall to uninstall it from your computer.

Method 2: Reinstall to Uninstall avast

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

Method 3: Uninstall avast 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 avast, 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.

Method 4: Uninstall avast via Windows Registry

1. Open regedit. To do so, press Windows and R keys, type in regedit and hit Enter.

2. Navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

3. Find the program you want to uninstall, search for a string value called UninstallString in the right panel.

4. Double-click on it and copy its value.

5. Press Windows and R keys, type in cmd to open command prompt.

6. Right click, paste the value and hit Enter key. After that, the program will begin to uninstall. Click Yes when it asks for your confirmation.

Note: If you have a 64-bit Windows system, you may need to navigate to the following key to look for 32-bit programs:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall

Method 5: Uninstall avast using its Uninstall.exe

If you cannot find avast in Programs and Features, then you may be able to uninstall it thru its uninstall.exe.

a. For 32-bit Windows 7, Vista, 8 or later, open the C:\Program Files folder, open the program's folder (ex: WinRAR), and go to step 3 below.

b. For 64-bit Windows 7, Vista, 8 or later, open either the C:\Program Files folder for an installed 64-bit program or C:\Program Files (x86) folder for a installed 32-bit program, and open the program's folder (ex: WinRAR).

Step 3: Delete invalid entries of avast 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 avast 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 avast

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

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

Uninstall avast via Automatic Uninstaller

Not every program can be easily uninstalled by the above manual uninstall methods, as not everyone of us are good at computers and manually editing computer settings. We may fail to uninstall a program successfully due to various reasons, such as missing necessary files, strange error messages, and no permission to uninstall the program. At this time, a professional third-party uninstaller will be very handy to help us easily and completely get rid of any unwanted program off our computer system. With only a few clicks, this powerful third-party uninstaller can automatically scan and identify all files and components related to avast and then completely remove avast. Click and download this professional Automatic Uninstaller below to uninstall your program now.