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PUP.Optional.Legacy. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Adware

PUP.Optional.Legacy is a heuristic name displayed by antivirus tools indicating adware infection 

PUP.Optional.Legacy
PUP.Optional.Legacy is a name of virus detection displayed on the screen by antivirus tool. You should follow the suggested removal and eliminate the PUP.

PUP.Optional.Legacy is a term used to indicate the potentially unwanted program on the computer. The detection name has been used by AdwCleaner and Malwarebytes anti-malware, so if you are using another anti-malware tool, you can receive different results, e.g. PUP.Optional.Legacy[key], Conduit or Chrome Search Provider. However, the main idea means the same – your device is infected with the PUP. The warning about this intruder may appear out of nowhere because of the initial infiltration moment is usually not related to any adware-type symptoms. Adware programs, similar to other potentially unwanted applications, infiltrate system thru bundling and then start delivering intrusive commercial content to your browser directly.[1] However, additional background processes which are used for victims' tracking can make your computer run slow.

Name PUP.Optional.Legacy
Type Adware
Also known as PUP.Optional.Legacy[key]; Chrome Search Provider; Conduit
Detected by AdwCleaner, Malwarebytes
Symptoms Intrusive commercial content, rerouted online traffic
Distribution Software bundles, deceptive advertisements
Elimination Install Reimage for PUP.Optional.Legacy removal and system cleaning

PUP.Optional.Legacy is a name that appears on the screen as a possible threat. Your antivirus may display a different name, but the main issue is still infiltration of the unwanted program on your system and background activities. If you already noticed some changes in the speed of your browser or device, you may be aware that the program acts intrusive. You can associate these symptoms with adware-type intruder:

  • banners injected on commonly visited sites;
  • pop-ups appearing constantly;
  • random text turning into hyperlinks;
  • additional extensions, bookmarks or toolbars installed on the browser;
  • commonly visited pages looking unfamiliar;
  • homepage or search engine changed.

Although PUP.Optional.Legacy virus may deliver useful information about deals, offers, and coupons this is not the program you want to keep on the system. Since there is no value, you need to eliminate all related programs and files from the computer if you want to keep working on your device without the risk.

Users online[2] complain about PUP.Optional.Legacy adware activity and persistence. It appears that developers install additional files on the system and even makes changes on the registry to keep this PUP removal difficult. Also, all those bookmarks, toolbars and extensions on your browser keep the intruder on your computer. You should manually remove them all and change browser settings to default, so there is no possibility of infection repetition.

Also, browsing online about this cyber threat revealed that detection might look like PUP.Optional.Legacy but with additional name of software at the end. There are tons of different detections similar to this one, such as PUP.Optional.InstallCore or PUP.Optional.Yontoo.

The main thing you need to remember is that PUP.Optional.Legacy removal gives the best results when you use anti-malware tools for the job. It is because malware-fighting programs indicate all possible threats and terminate them altogether. A full system scan also improves the speed of your machine.  

Remove PUP.Optional.Legacy as researchers[3] advises you to – using tools like Reimage or the program you already received the alert from. We also have a few other options down below for reputable tools. Remember that PUPs have a distinct feature of tracking users' data and starts collecting information about your browsing habits and most viewed sites or even location immediately after infiltration. Clean the system thoroughly and forget about redirects, pop-up ads, and other unwanted content. 

Software bundles distribute unwanted applications 

In the world of cyber threats, developers employ various distribution techniques to spread their products around the internet. The most common way of PUP distribution is software bundling[4] when freeware providers pack their applications alongside unwanted programs like hijackers or adware. You cannot avoid this infiltration if you choose Default or Quick installations because the optional step is hidden when you skip through the process. 

When opting for Advanced or Custom installations, you are given the opportunity to de-select intrusive applications and proceed with the installation of your necessary software. However, you can also avoid these intrusive programs if you choose your sources wisely. Using p2p services or non-official download websites cannot give you positive results all the time. 

Terminate PUP.Optional.Legacy and other related processes or programs

When it comes to PUP.Optional.Legacy removal it is not that difficult. The name of detection frustrates people, and possible solutions may look too tricky. But we have a thorough virus elimination guide down below that gives you tips on every step of the process. 

Remove PUP.Optional.Legacy using anti-malware tools and then check your browser settings for any unwanted changes. You need to perform this process with the help of professional tools to make sure no malware is left behind. In the future, keep your anti-malware up-to-date, so every possible threat is detected in time.

You can remove virus damage automatically with a help of one of these programs: Reimage, Malwarebytes MalwarebytesCombo Cleaner, Plumbytes Anti-MalwareMalwarebytes Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove PUP.Optional.Legacy, follow these steps:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete PUP.Optional.Legacy from Windows systems

Clean your device and forget about PUP.Optional.Legacy adware alerts

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall PUP.Optional.Legacy and related programs
    Here, look for PUP.Optional.Legacy or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of PUP.Optional.Legacy from Mac OS X system

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for PUP.Optional.Legacy or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate PUP.Optional.Legacy from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for PUP.Optional.Legacy and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete PUP.Optional.Legacy removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Uninstall PUP.Optional.Legacy from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, PUP.Optional.Legacy should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase PUP.Optional.Legacy from Mozilla Firefox (FF)

Fix your Firefox after PUP.Optional.Legacy removal and reset the browser to default so additional apps can be removed

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select PUP.Optional.Legacy and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete PUP.Optional.Legacy removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove PUP.Optional.Legacy from Google Chrome

Get rid of PUP.Optional.Legacy related extensions, bookmarks or toolbars and block unwanted notifications by following this guide:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select PUP.Optional.Legacy and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete PUP.Optional.Legacy removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete PUP.Optional.Legacy from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for PUP.Optional.Legacy or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete PUP.Optional.Legacy removal process. Select all options and click on 'Reset' button

About the author

Lucia Danes
Lucia Danes - Virus researcher

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