Severity scale:  
  (10/100)

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

removal by Ugnius Kiguolis - - | Type: Adware
12

PUP.Optional.InstallCore welcomes unsuspecting users

The picture showing detected PUP.Optional.InstallCore virus

PUP.Optional.InstallCore virus might trigger several browsing problems. Even it has been on the cyber space for a quite long time and media already escalated this issue, it still roams unstoppable.  If you are wondering what is It PUP.Optional.InstallCore, let us assure that is not highly sophisticated malware, but in fact, adware[1] which:

  • redirects to gaming and gambling sites
  • launches pop-up ads in new tabs

Because of those pop-ups, your browser finds it difficult to maintain high-speed processes. Moreover, the infection might modify search results. In other words, more advertising links surface among the search results. It is related with InstallCore adware, so you should be cautious that the latter might try to invade the PC as well. Do not waste time and start PUP.Optional.InstallCore removal immediately. You can use Reimage  or Malwarebytes Anti Malware for that purpose.

“Aggressive advertising”

Speaking of PUP.Optional.InstallCore redirect tendency, you might struggle to reach the wanted websites, or more specifically, from the first attempt.

Before you succeed in entering the website of your interest, you have to ward off the emerging redirect new tabs. Moreover, exiting them on time might become crucially important regarding the probability of their promotes sites harboring malware[2]. That is why you should remove PUP.Optional.InstallCore before it roots deeper into the system.

Adware category is expanding at the alarming rate

Since this PUP is an adware-type program, your patience might be tested. PUP.Optional.InstallCore ads appear in every visited website. Moreover, they also appear quite often and tend to cover your screen.

If you are in a hurry and want to find the piece of information quickly, you might get infuriated since the emerging pop-ups significantly occupy your browser. As a result, website buffering takes considerably more time.

You should also be aware that the program might install additional irrelevant toolbars, other adware, and inject plug-ins. Though the majority of them is quite harmless, some of the installed programs might contain malicious files. They may act as mediators for more aggressive malware to invade your computer.

That is why you should read the following passage to know how to prevent PUP.Optional.InstallCore hijack in the future.

PUP developers diversify transmission strategies

Adware travels along with popular free programs. They can be either audio editors, video converters, or Java updates. Once you download one of them, you are unaware that “bonus” add-ons come along with them. As a result of reckless installation, the attachments get installed.

That is how PUP.Optional.InstallCore got into your computer as well. Are you interested in precautions? Then, take note of these tips. Instead of commonly chosen “Basic” settings, select “Advanced.” Then, make sure not to overlook any pre-checked attachments. Untick them one by one.

Lastly, note that some scammers might know that more and more users are getting aware of their strategies, so sometimes the add-ons are placed under “Custom” mode as well.

Eliminate PUP.Optional.InstallCore from Chrome, Firefox, Internet Explorer, Safari

You can uninstall the program manually. Make sure you follow removal guidelines provided by IT experts. You can find the instructions on our website as well. They are displayed below. Speaking of alternative solution methods, you can remove PUP.Optional.InstallCore automatically. If you prefer software to do the work for you, then you can rest assured that it will detect the PUP and exterminate it without leaving any traces. 

If you want to surf the Web quickly again without getting worried that adware plagues your browser, update the anti-spyware program regularly and avoid clicking on dubious links in such sites as movie streaming domains and torrent sharing sites to escape PUP.Optional.InstallCore virus.

Note that the PUP targets the entire virtual community. It does not exclude any particular country. Thus, even if you live in Sweden[3], which is considered to have lowest malware rates, be wary of this browser threat.

You can remove PUP.Optional.InstallCore automatically with a help of one of these programs: Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus, Malwarebytes Anti Malware. We recommend these applications because they can easily delete potentially unwanted programs and viruses with all their files and registry entries that are related to them.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove PUP.Optional.InstallCore you agree to our privacy policy and agreement of use.
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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall PUP.Optional.InstallCore. 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.
More information about this program can be found in Reimage review.
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Manual PUP.Optional.InstallCore Removal Guide:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove PUP.Optional.InstallCore from Windows systems

  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.InstallCore and related programs
    Here, look for PUP.Optional.InstallCore 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

Remove PUP.Optional.InstallCore from Mac OS X system

Mac OS users are also targetted with PUP. Optional.InstallCore infection. Clear the browsing data and scan the device to delete all of its components completely.

  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.InstallCore 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

Remove PUP.Optional.InstallCore 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.InstallCore 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.InstallCore 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

Remove PUP.Optional.InstallCore 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.InstallCore should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove PUP.Optional.InstallCore from Mozilla Firefox (FF)

  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.InstallCore 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.InstallCore removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove PUP.Optional.InstallCore from Google Chrome

  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.InstallCore 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.InstallCore removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove PUP.Optional.InstallCore 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.InstallCore 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.InstallCore removal process. Select all options and click on 'Reset' button
After uninstalling this potentially unwanted program (PUP) and fixing each of your web browsers, we recommend you to scan your PC system with a reputable anti-spyware. This will help you to get rid of PUP.Optional.InstallCore registry traces and will also identify related parasites or possible malware infections on your computer. For that you can use our top-rated malware remover: Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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  • Mina

    Those PUPs are so irritating! Once you get rid of one, another appears!

  • Sophie

    Until I installed an anti-malware program, I was unaware how many the PUPs were hiding on my PC !