Are you seeking for a feasible way to completely get rid of and uninstall Active Catalog 1.21? If you're having some trouble doing that, here is the right place to help you thoroughly uninstall Active Catalog 1.21. If Active Catalog 1.21 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 Active Catalog 1.21, and follow the listed professional methods to remove Active Catalog 1.21.

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 Active Catalog 1.21 (Recommended):

This Automatic Uninstaller will completely scan through the whole registry and hard drive and detect all files and components that belong to Active Catalog 1.21. With this Automatic Uninstaller, uninstalling a program completely can be as easy as ABC for you in the future.

Manually Uninstall Active Catalog 1.21:

Step 1: End all processes that are related to Active Catalog 1.21

Step 2: Uninstall Active Catalog 1.21

Step 3: Delete invalid entries of Active Catalog 1.21 in the registry

Step 4: Delete leftovers of Active Catalog 1.21 in hard drive

Step 1: End all processes that are related to Active Catalog 1.21

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 Active Catalog 1.21

You can uninstall Active Catalog 1.21 by any of the following uninstall methods:

Method 1: Uninstall Active Catalog 1.21 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 Active Catalog 1.21 and click Uninstall to uninstall it from your computer.

Method 2: Reinstall to Uninstall Active Catalog 1.21

If some of program files that are needed to uninstall Active Catalog 1.21 are missing or corrupted, you may fail to uninstall it. Believe it or not, reinstalling Active Catalog 1.21 may do the trick. If you still keep the original disk or the download file of Active Catalog 1.21, you can try that to repair the program. After repairing the program, you can try to uninstall it again.

Method 3: Uninstall Active Catalog 1.21 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 Active Catalog 1.21, 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 Active Catalog 1.21 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 Active Catalog 1.21 using its Uninstall.exe

If you cannot find Active Catalog 1.21 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 Active Catalog 1.21 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 Active Catalog 1.21 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 Active Catalog 1.21

Even you uninstall Active Catalog 1.21 in Control Panel and remove invalid keys in the registry, there are still some folders left in hard drive. To completely remove Active Catalog 1.21 from your system, you can go to the following locations to delete the folders of Active Catalog 1.21.

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

Uninstall Active Catalog 1.21 via Automatic Uninstaller

Manually uninstalling Active Catalog 1.21 cannot promise a 100% removal of Active Catalog 1.21, especially for computer users with little computer knowledge. If you have tried the above manual uninstall steps but still cannot get Active Catalog 1.21 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.