How to remove JCleaner from the operating system

What is JCleaner?

JCleaner is a potentially unwanted application (PUA) with an identical name as a cleaner/system optimizer from Vitsoft. PUAs are often bundled with other software by including them with downloaders and installers as "extra offers".

These programs are classified as potentially unwanted, since users often download and install them inadvertently. Applications that are distributed using dubious methods should never be trusted or used. This also applies to JCleaner. Furthermore, the installer for JCleaner is detected as a threat by more than 40 antivirus scanners on VirusTotal.

There are many fake system optimization, cleaning, malware removal, and other tools (rogue scanners) that run fake scans and display fabricated threats, error notices, security results, etc. The purpose is to trick users into purchasing the fake tools to remove "potential threats" and "issues". It is likely that JCleaner is also one of these fake cleaners.

PUAs can also reduce computer performance, display ads, collect information, add unwanted toolbars onto browsers, etc. PUAs are often bundled with other apps of this type including, for example, various browser hijackers, adware-type applications.

Users who have such apps installed on their computers or browsers should remove them immediately. Browser hijackers change browser settings to promote a specific address, usually a fake search engine. In most cases, they change the address of the default search engine, homepage, and new tab. Most do not allow users to undo these settings unless the rogue software is uninstalled.

Adware-type apps generate advertisements (banners, coupons, surveys, pop-ups, etc.) that promote dubious websites and applications. In some cases, the ads are used to distribute unwanted applications - if clicked, they download and install unwanted software by running certain scripts.

Adware (and browser hijackers) can also collect details such as entered search queries, geolocations, Internet Protocol addresses, browsing history, etc. or even passwords, credit card details and other sensitive information. The collected information is misused to generate revenue (it can be sold to third parties, even cyber criminals).

In summary, PUAs such as JCleaner should never be trusted or activated through payment. They often provide fake results to trick users into paying for registration (activation). Furthermore, they are commonly bundled with other untrusted apps of this kind.

Use only legitimate software available on official, trusted web pages.

More examples of PUAs that share some similarities with the JCleaner program are SmartPCFixer, SpeedFixTool and PC Optimizer Pro.

How did potentially unwanted applications install on my computer?

Browser hijackers, adware-type apps, and other types of PUAs are commonly distributed by integrating them into the download and/or installation set-ups of other programs, so that a proportion of users inadvertently download and install them together with their chosen software. This distribution method is known as "bundling".

Offers to download and install additionally-included apps usually appear in "Advanced", "Custom" and other settings of the set-ups (where they can usually be declined). Many users fail to check and change these settings, thereby granting permission for PUAs to be downloaded and installed by default.

In addition, unwanted downloads and installations are sometimes caused by clicking deceptive advertisements capable of executing certain scripts.

How to avoid installation of potentially unwanted applications

Download software and files from official websites and via direct links. It is not safe to use torrent clients, eMule (or other Peer-to-Peer networks), third party downloaders, unofficial websites or other sources of this kind.

Avoid third party installers. Check "Advanced", "Custom" and other settings, and decline offers to download or install unwanted software. Do not click ads that are displayed on dubious websites, since they can open other untrusted websites or even cause unwanted downloads and installations.

Remove any unwanted, suspicious applications (extensions, add-ons, and plug-ins) that are installed on the browser. The same should be applied to programs of this kind that are installed on the operating system.

Regularly scan your computer with reputable antivirus or anti-spyware software and keep this software up to date.

If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

Installation setup of JCleaner application:

Instant automatic malware removal:

Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:

By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by RCS LT, the parent company of PCRisk.com.

Quick menu:

• What is JCleaner?
• STEP 1. Uninstall deceptive applications using Control Panel.
• STEP 2. Remove rogue extensions from Google Chrome.
• STEP 3. Remove potentially unwanted plug-ins from Mozilla Firefox.
• STEP 4. Remove rogue extensions from Safari.
• STEP 5. Remove rogue plug-ins from Microsoft Edge.
• STEP 6. Remove malicious plug-ins from Internet Explorer.

Removal of potentially unwanted applications:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "JCleaner" and other suspicious/recently-installed applications, select these entries and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove rogue extensions from Internet browsers:

At time of research, JCleaner did not install any unwanted browser extensions, however, some unwanted applications can be installed together with adware and browser hijackers. If you experience unwanted ads or redirects when browsing the internet, continue with the removal guide below.

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon  (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons and remove them.

Optional method:

If you continue to have problems with removal of the jcleaner potentially unwanted application, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click on "Extensions", in the opened window remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with jcleaner potentially unwanted application removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the jcleaner potentially unwanted application, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the jcleaner potentially unwanted application, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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