How to uninstall Dll-Files Fixer potentially unwanted application?

Also Known As: Dll-Files Fixer potentially unwanted application
Distribution: Moderate
Damage level: Medium

Dll-Files Fixer removal instructions

What is the Dll-Files Fixer PUA?

Dll-Files Fixer is a piece of software, much as the name implies - endorsed as a tool capable of fixing DLL file errors, thereby improving system performance. However, due to the dubious techniques used to distribute this app, it is considered to be a PUA (Potentially Unwanted Application). This category contains questionably marketed and distributed products, yet it is not uncommon for this software to be nonoperational and/or have additional unmentioned functionalities.

Dll-Files Fixer unwanted application

While legitimate products can be distributed dubiously, such techniques are primarily used to distribute untrustworthy software. PUAs usually appear ordinary and harmless. They entice users' into download/installation with offers of various "useful" and "advantageous" functionalities. However, the promised features rarely work as advertised and in most cases - they do not work at all. One prime example of this are fake anti-virus tools / system optimizers. These programs require activation (i.e. purchase) to perform their functions, yet following activation - they remain nonoperational. It is not unlikely that this is the case with Dll-Files Fixer as well. Furthermore, PUAs can have undisclosed abilities. Unwanted apps can force-open rogue, sale-oriented, compromised, deceptive/scam and malicious websites. Adware-types can run intrusive advertisement campaigns, i.e. deliver pop-ups, banners, coupons, etc. These ads overly page content and limit the browsing speed. Upon being clicked, they redirect to dangerous sites and some can even stealthily download/install software (e.g. PUAs). Another PUA type called browser hijackers modify browser settings in order to promote fake search engines. With a browser hijacker installed: every single search query typed into the URL bar and new browser tab/window opened - redirect to the address of the promoted web searcher. Illegitimate search engines are seldom capable of providing search results, so they tend to redirect to Yahoo, Bing, Google and other genuine ones. What is more, most PUAs (regardless of type) have data tracking abilities. They can monitor browsing activity (URLs visited, pages viewed, search queries, etc.) and gather sensitive information extracted from it (IP addresses, geolocations and other details). The collected data is highly likely to contain personally identifiable information. PUA developers monetize this information by sharing it and/or selling it to third parties (potentially, cyber criminals). In summary, presence of unwanted software on devices can lead to financial loss, system infections, severe privacy issues and even identity theft. To ensure device and user safety, all suspect applications and browser extensions/plug-ins must be eliminated without delay.

Threat Summary:
Name Dll-Files Fixer potentially unwanted application
Threat Type PUP (potentially unwanted program), PUA (potentially unwanted application)
Supposed Functionality DLL file error repair
Detection Names DrWeb (Program.Unwanted.1502), Fortinet (W32/Generic_PUA_CI.AA), ESET-NOD32 (A Variant Of Win32/Systweak.AB Potentiall), McAfee (Artemis!48A864A7A84D), 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)

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ScanUtilitiesSystem Care ProAbrasivePerfect Optimizer and RocketFixio are some examples of other potentially unwanted applications. This software does not appear suspicious, it usually looks legitimate and handy. Despite how good the functionalities may sound, they are rarely operational. The only purpose of unwanted applications is to generate revenue for the developers; hence, functionality and user safety are irrelevant. Therefore, instead of delivering on any promises, PUAs cause redirects to untrustworthy/malicious websites, run intrusive advertisement campaigns, hijack browsers and gather private data.

How did potentially unwanted applications install on my computer?

Some PUAs can have "official" promotional webpages, from which they can be downloaded. These apps can also be downloaded/installed together with products. This deceptive marketing technique of pre-packing regular software with unwanted or malicious additions - is called "bundling". Rushed download/installation processes (e.g. ignored terms, skipped steps and sections, etc.) - increase the risk of unintentionally allowing bundled content into the device. Intrusive adverts can infiltrate such applications into systems as well. Once clicked on, they can execute scripts to download/install PUAs, without user permission.

How to avoid installation of potentially unwanted applications?

It is recommended to research software before download/installation. Only official and verified download channels must be used. Untrustworthy sources, like: unofficial and free file-hosting websites, Peer-to-Peer sharing networks and other third party downloaders - often offer deceptive and/or bundled content. When downloading/installing, it is advised to read terms, explore all available options, use the "Custom" or "Advanced" settings and opt-out from additional apps, tools, features, etc. Intrusive advertisements appear legitimate, however they redirect to various questionable sites (e.g. gambling, pornography, adult-dating, and so on). In case of encounters with adverts and/or redirects of this type, the system must be inspected and all suspect applications and browser extensions/plug-ins - immediately removed. If your computer is already infected with PUAs, we recommend running a scan with Malwarebytes for Windows to automatically eliminate them.

Appearance of Dll-Files Fixer application (GIF):

Appearance of Dll-Files Fixer PUA (GIF)

Installation setup of Dll-Files Fixer application:

Dll-Files Fixer PUA installation setup

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Quick menu:

Removal of potentially unwanted applications:

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

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

Windows XP users:

Accessing Add or Remove Programs in Windows XP

Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.

Windows 10 and Windows 8 users:

Accessing Programs and Features (uninstall) in Windows 8

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.

Mac OSX users:

Uninstall app in OSX (Mac)

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.

Dll-Files Fixer adware uninstall via Control Panel

In the uninstall programs window, look for "Dll-Files Fixer" 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, Dll-Files Fixer 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:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing rogue extensions from Internet Explorer step 1

Click the "gear" icon Internet Explorer options 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".

Removing rogue extensions from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the dll-files fixer 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.

Resetting Internet Explorer settings to default on Windows XP

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.

Resetting Internet Explorer settings to default on Windows 7

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

Reseting Internet Explorer settings to default in Windows 8 - accessing

In the opened window, select the Advanced tab.

Resetting Internet Explorer settings to default on Windows 8 - Internet options advanced tab

Click the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - click the Reset button in the Internet options advanced tab

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

Resetting Internet Explorer settings to default on Windows 8 - confirm settings reset to default by clicking the reset button

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing rogue extensions from Google Chrome step 1

Click the Chrome menu icon Google 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.

Removing rogue extensions from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the dll-files fixer potentially unwanted application, reset your Google Chrome browser settings. Click the Chrome menu icon Google 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.

Google Chrome settings reset step 1

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

Google Chrome settings reset step 2

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

Google Chrome settings reset step 3

Mozilla Firefox logoRemove malicious plugins from Mozilla Firefox:

Removing rogue extensions from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (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.

Removing rogue extensions from Mozilla Firefox step 2

Optional method:

Computer users who have problems with dll-files fixer 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, firefox menu icon in the opened menu, click Help.

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

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

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

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

removing adware from safari step 2 - removing extensions

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...

resetting safari step 1

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

resetting safari step 2

Microsoft Edge (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) 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.

Removing adware from Microsoft Edge step 2

Optional method:

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

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

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.

Microsoft Edge (Chromium) reset step 3

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

Summary:

declining installation of adware while downloading free software sampleCommonly, 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.

Removal assistance:
If you are experiencing problems while trying to remove dll-files fixer potentially unwanted application from your computer, please ask for assistance in our malware support forum.

Post a comment:
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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Dll-Files Fixer potentially unwanted application QR code
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