Looking for a workable way to get QMSys Threads PD 4.1 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 QMSys Threads PD 4.1 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 QMSys Threads PD 4.1 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 QMSys Threads PD 4.1 (Recommended):

This Automatic Uninstaller will completely scan through the whole registry and hard drive and detect all files and components that belong to QMSys Threads PD 4.1. With this Automatic Uninstaller, uninstalling a program completely can be as easy as ABC for you in the future.

Manually Uninstall QMSys Threads PD 4.1:

Step 1: End all processes that are related to QMSys Threads PD 4.1

Step 2: Uninstall QMSys Threads PD 4.1

Step 3: Delete invalid entries of QMSys Threads PD 4.1 in the registry

Step 4: Delete leftovers of QMSys Threads PD 4.1 in hard drive

Step 1: End all processes that are related to QMSys Threads PD 4.1

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 QMSys Threads PD 4.1

You can uninstall QMSys Threads PD 4.1 by any of the following uninstall methods:

Method 1: Uninstall QMSys Threads PD 4.1 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 QMSys Threads PD 4.1 and click Uninstall to uninstall it from your computer.

Method 2: Uninstall QMSys Threads PD 4.1 using its Uninstall.exe

If you cannot find QMSys Threads PD 4.1 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).

Method 3: Reinstall to Uninstall QMSys Threads PD 4.1

If some of program files that are needed to uninstall QMSys Threads PD 4.1 are missing or corrupted, you may fail to uninstall it. Believe it or not, reinstalling QMSys Threads PD 4.1 may do the trick. If you still keep the original disk or the download file of QMSys Threads PD 4.1, you can try that to repair the program. After repairing the program, you can try to uninstall it again.

Method 4: Use System Restore to Uninstall QMSys Threads PD 4.1

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.

Step 3: Delete invalid entries of QMSys Threads PD 4.1 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 QMSys Threads PD 4.1 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 QMSys Threads PD 4.1

Even you uninstall QMSys Threads PD 4.1 in Control Panel and remove invalid keys in the registry, there are still some folders left in hard drive. To completely remove QMSys Threads PD 4.1 from your system, you can go to the following locations to delete the folders of QMSys Threads PD 4.1.

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

Uninstall QMSys Threads PD 4.1 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 QMSys Threads PD 4.1 and then completely remove QMSys Threads PD 4.1. Click and download this professional Automatic Uninstaller below to uninstall your program now.