Looking for a workable way to get PumpCalc 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 PumpCalc 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 PumpCalc 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 PumpCalc (Recommended):

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

Manually Uninstall PumpCalc:

Step 1: End all processes that are related to PumpCalc

Step 2: Uninstall PumpCalc

Step 3: Delete invalid entries of PumpCalc in the registry

Step 4: Delete leftovers of PumpCalc in hard drive

Step 1: End all processes that are related to PumpCalc

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 PumpCalc

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

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

Method 2: Reinstall to Uninstall PumpCalc

If some of program files that are needed to uninstall PumpCalc are missing or corrupted, you may fail to uninstall it. Believe it or not, reinstalling PumpCalc may do the trick. If you still keep the original disk or the download file of PumpCalc, 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 PumpCalc

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 PumpCalc 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 PumpCalc, 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 PumpCalc 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 PumpCalc 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 PumpCalc

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

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

Uninstall PumpCalc via Automatic Uninstaller

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