Looking for a workable way to get Quick PDF Reader by Sumatra 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 Quick PDF Reader by Sumatra 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 Quick PDF Reader by Sumatra 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 Quick PDF Reader by Sumatra (Recommended):

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

Manually Uninstall Quick PDF Reader by Sumatra:

Step 1: End all processes that are related to Quick PDF Reader by Sumatra

Step 2: Uninstall Quick PDF Reader by Sumatra

Step 3: Delete invalid entries of Quick PDF Reader by Sumatra in the registry

Step 4: Delete leftovers of Quick PDF Reader by Sumatra in hard drive

Step 1: End all processes that are related to Quick PDF Reader by Sumatra

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 Quick PDF Reader by Sumatra

You can uninstall Quick PDF Reader by Sumatra by any of the following uninstall methods:

Method 1: Uninstall Quick PDF Reader by Sumatra via Control Panel

1. Press Windows key and R key to open Run command.

2. When Run command pops up, type in appwiz.cpl and then hit OK button.

3. Right click on Quick PDF Reader by Sumatra and click Uninstall to uninstall Quick PDF Reader by Sumatra

Note: Usually, computer users can uninstall programs like Quick PDF Reader by Sumatra through Control Panel. But not everything can go as people wish and problems happen sometimes. For example, users may not be able to find Quick PDF Reader by Sumatra in Control Panel, or the uninstallation is interrupted due to some strange errors. If problems happen unexpectedly and you really want to completely remove Quick PDF Reader by Sumatra from your computer system, you need to perform the following steps and manually remove all of its files and components out of the system.

Method 2: Use System Restore to Uninstall Quick PDF Reader by Sumatra

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: Uninstall Quick PDF Reader by Sumatra 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 4: Reinstall to Uninstall Quick PDF Reader by Sumatra

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

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

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

Uninstall Quick PDF Reader by Sumatra via Automatic Uninstaller

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