How to uninstall OneSafe PC Cleaner
Written by Tomas Meskauskas on (updated)
What is OneSafe PC Cleaner?
OneSafe PC Cleaner is software classed as a Potentially Unwanted Application (PUA). It is endorsed as system cleaning tool capable of scanning and removing various threats and issues. One of this application's distribution methods is via deceptive/scam websites, hence why it is classified as a PUA.
Note that these unwanted apps are often inadvertently downloaded/installed together with other, regular programs (often when downloaded from untrustworthy sources).
PUAs are highly dubious and potentially harmful applications. Any content categorized as such should not be installed. Typically (despite being advertised as free), PUAs such as OneSafe PC Cleaner require activation to become operational (i.e., require to be purchased to work).
In fact, even after activation, they tend to remain nonoperational. It is not uncommon for the download/install set-ups used to proliferate these apps to contain more than one PUA (e.g. adware or browser hijackers). While the sole purpose of unwanted applications is to generate revenue for the developers, they can have different methods of accomplishing this.
Some types force-open sale-based, untrustworthy, compromised, deceptive/scam and malicious websites. Others run intrusive advertisement campaigns by implementing varied tools to enable third party graphical content to be displayed on any site. Therefore, the delivered ads significantly diminish the browsing experience (limit browsing speed and site visibility).
Intrusive advertisements also carry certain risks. When clicked, they can redirect to likewise dangerous web pages, and some ads can even execute scripts designed to stealthily download/install PUAs, however, another type of unwanted app (browser hijacker) can make unauthorized changes to browsers and limit/deny access to their settings.
By far the most dangerous capability that most PUAs possess is data tracking. They monitor users' browsing activity (URLs visited, pages viewed, search queries typed, etc.) and collect personal information (IP addresses, geolocations and other details).
This vulnerable data can then be shared with third parties (often, cyber criminals) intent on misusing it for financial gain. To summarize, the presence of PUAs on devices can cause various browser/system infiltration and infections, and lead to financial loss, serious privacy issues and even identity theft.
To ensure device and user safety, remove all suspicious applications and/or browser extensions/plug-ins without delay.
| Name | OneSafe PC Cleaner potentially unwanted application |
| Threat Type | PUP (potentially unwanted program), PUA (potentially unwanted application). |
| Supposed Functionality | This application is allegedly capable of scanning and cleaning the operating system. |
| Detection Names | ESET-NOD32 (A Variant Of Win32/Avanquest.A Potentiall), Kaspersky (Hoax.Win32.SafeCleaner.q), DrWeb (Program.Unwanted.4549), GData (Win32.Application.AvanOSPC.A), Full List Of Detections (VirusTotal) |
| Symptoms | A program that you do not recall installing suddenly appeared on your computer. A new application is performing computer scans and displays warning messages about 'found issues'. Asks for payment to eliminate the supposedly found errors. |
| Distribution Methods | Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers. |
| Damage | Monetary loss (unnecessary purchase of fake software), unwanted warning pop-ups, slow computer performance. |
| Malware Removal (Windows) | To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. |
Full System Care, BitSecure AV, and Complete System Care are examples of software similar to OneSafe PC Cleaner. PUAs can offer a wide array of "useful" and "beneficial" functions/features such as system cleaning/optimization, web search enhancement, quick access to specific content to name a few.
Regardless of how good these offers may sound, the advertised features rarely work as promised. Rather than delivering any real value, PUAs generate redirects to untrustworthy/malicious pages, run intrusive ad campaigns, hijack browsers, and track private data.
How did potentially unwanted applications install on my computer?
Some PUAs have "official" promotional web pages, which are frequently accessed through scam sites. This proliferation method is used by OneSafe PC Cleaner, however, PUAs are also spread via download/install set-ups of other software. This deceptive marketing method of pre-packing normal programs with unwanted or malicious content is called "bundling".
Rushing download/installation processes (e.g. ignoring terms, skipping steps, using presets, etc.) increases the risk of potential system infiltration and infections. When clicked, intrusive advertisements can execute scripts to download/install PUAs without users' consent.
How to avoid installation of potentially unwanted applications
Research content, prior to downloading/installing. Use only official and verified download channels. Untrustworthy download sources such as P2P sharing networks (BitTorrent, eMule, Gnutella, etc.), unofficial and free file-hosting websites, third party downloaders and similar are more likely to offer deceptive and/or bundled software.
When downloading/installing, read the terms, explore all available options, use the "Custom/Advanced" settings and opt-out of supplementary apps, tools, functions and so on. Intrusive ads commonly seem legitimate and innocuous, however, they can redirect to dubious web pages (e.g. pornography, adult-dating, gambling and others).
If you experience these ads/redirects, inspect the device and immediately remove all suspect applications and/or browser extensions/plug-ins. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
OneSafe PC Cleaner installation setup:
Website promoting OneSafe PC Cleaner application:
OneSafe PC Cleaner application promoted by a scam website (GIF):
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:
▼ DOWNLOAD Combo Cleaner
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 read more.
Quick menu:
- What is OneSafe PC Cleaner?
- STEP 1. Uninstall deceptive applications using Control Panel.
- STEP 2. Remove malicious plug-ins from Internet Explorer.
- STEP 3. Remove rogue extensions from Google Chrome.
- STEP 4. Remove potentially unwanted plug-ins from Mozilla Firefox.
- STEP 5. Remove rogue extensions from Safari.
- STEP 6. Remove rogue plug-ins from Microsoft Edge.
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 "OneSafe PC Cleaner" 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, OneSafe PC Cleaner 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 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 onesafe pc cleaner 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.
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 onesafe pc cleaner 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 onesafe pc cleaner 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 onesafe pc cleaner 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.
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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