Kuaizip

Posted by Lisa Blanc on July 26, 2016

What is Kuaizip?

Kuaizip is file compression software that is promoted at kuaizip.com. At first glance, it looks like a beneficial and reliable file archiver, so many users decide to install it on their computers. It is not surprising at all that there are users who download and install this piece of software willingly because it is said that its compression ratio is 30% higher if compared to similar applications, including WinRAR and WinZip. In addition, it is said on its official website that Kuaizip can be used as a virtual drive to mount CD/DVD/HDD images as well. Even though this software seems to be good, we still cannot say that it is a trustworthy application that should be kept installed on the system. In fact, specialists working at anti-spyware-101.com have even put it into the category of potentially unwanted programs. There are several reasons why it has been classified as a PUP, and they will be all presented in this article. Also, you will be told how you delete Kuaizip from the system. test test test

What does Kuaizip do?

Kuaizip has been released in two versions: English and Chinese; however, specialists say that the English version of this program is no longer active and cannot be downloaded from the official website. Of course, you might have downloaded it some time ago and still have it installed on your computer. To be honest, it does not really matter which version is installed on your computer because both of them are not fully reliable. Researchers have carried out research and then decided to categorize Kuaizip as a potentially unwanted program because they have noticed that it immediately sets itself as the default file archiver once it enters the computer. Of course, it does that without permission. It means that Kuaizip will launch automatically if you try to open some kind of archive. What is more, it has been found that the Chinese version of this application enters computers secretly, i.e. users do not see any message that it is going to be installed, and they cannot accept or decline the installation. In fact, the English version used to be spread in software bundles as well, so many users might not know that they have it too. To be frank, it does not matter which version you have because they both need to be removed as Kuaizip is a potentially unwanted program. There is no doubt that you will find a more trustworthy application to install instead of it because there is a bunch of other file compression applications available on the web for download.

Where does Kuaizip come from?

Specialists working at anti-spyware-101.com call Kuaizip a potentially unwanted program because it often enters computers without the direct permission. It seems that it is spread through bundled malicious installers mainly. In other words, it comes in software packages together with other applications, which are not all trustworthy as well. As we have already mentioned, users are not even informed that the Chinese version of this program is going to be installed, so they cannot prevent this from happening either. Believe us; decent programs never act like that, so we do not think that it is a very good idea to keep this potentially unwanted program installed on the system.

Not all the users immediately understand that Kuaizip is installed on their systems; however, if you can find its main folder in %PROGRAMFILES(x86)% or %PROGRAMFILES%, there is no doubt that this PUP is installed on the system. More experienced users can also open the registry editor to find several new registry keys created by Kuaizip, e.g. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\KuaizipUpdateChecker\ and HKEY_CURRENT_USER\SOFTWARE\KuaiZipSFX\.

How to remove Kuaizip

If you have the English version of Kuaizip installed on your computer, you can erase it through Control Panel; however, you will still need to take care of junk files it leaves. The easiest way to do that is to scan the system with an automatic malware remover. Unfortunately, users who have the Chinese version of this application will have to delete it manually because it does not create its entry in Control Panel. In case you find this method too difficult, scan your computer with SpyHunter. We can assure you that it will erase all the threats it manages to find on your PC in the blink of an eye.

Delete Kuaizip in a manual way

Remove files

Find and delete shortcuts KuaiZip.lnk (if you have the English version) or ¿ìÑ¹.lnk (if you have the Chinese version) from your Desktop.
Open the Windows Explorer (Win+E).
Go to %PROGRAMFILES(x86)% (type in the URL bar and tap Enter) and delete KuaiZip (English version) and ¿ìÑ¹ (Chinese version) folders from there.
Go to %PROGRAMFILES% and remove KuaiZip (English version) and ¿ìÑ¹ (Chinese version) folders.
Delete the KuaiZip folder from these directories:

Remove registry keys

Launch RUN (Win+R).
Enter regedit.exe in the box and tap Enter.
Delete the following registry keys (right-click on the registry key and select Delete):

Delete the Value Data

Launch RUN and enter regedit.exe.
Tap Enter.
Locate the following registry keys and change the Value Data (right-click on the Value and delete the Value Data) of Values you find inside the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.ape
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.bin
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.ccd
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.cue
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.isz
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.cue
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.mdf
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.mds
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.nrg
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.vcd
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.wv

Remove CLSID keys

Launch RUN again and enter regedit.exe.
Tap Enter.
Open the Edit tab at the top and select Find.
Copy and paste the CLSID key in the search box to find it, select it, and then tap the Delete button to remove it: