Ads Removal

“Installed by enterprise policy” “Virus” Removal (August 2018 Update)

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

Download SpyHunter Anti-Malware

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

How irritating is this problem? (1 votes, average: 5.00)

This page aims to help you remove “Installed by enterprise policy”. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

A program named “Installed by enterprise policy” has recently been reported as a source of enormous ads-related disturbance for some web users. The people complain from sudden page-redirects, generation of various aggressive ads, pop-ups, hard-to-remove banners, blinking boxes and a never-ending stream of commercial messages, which get displayed through the window of their default browser.  Left with no option to browse the web in peace, some desperate users have contacted our team for assistance. They have been seeking methods to remove “Installed by enterprise policy” from their Chrome, Explorer, Firefox and other browsers in a risk-free and effective way. That’s why, in the next lines, we will do our best to offer a solution for the uninstallation of the undesired program in the form of a detailed Removal Guide. If you have also been invaded by “Installed by enterprise policy”, then read the further information where you will learn more about the specifics of this software and its nature.

“Installed by enterprise policy” – a dangerous virus or an annoying Adware?

“Installed by enterprise policy” is a recently reported piece of software, which operates in a way that seems to create a lot of browsing disturbance. The program typically integrates with most popular browser apps and uses them to display an unusually high number of advertisements, sponsored links and page-redirects during the browsing sessions. Sadly, the strange software does not provide easy access to any uninstallation options and the ads that it generates are also hard-to-remove from the screen. They tend to be quite intrusive and usually prompt the users to click on various unfamiliar and third-party links. Therefore, the people usually get confused about the nature of the software and refer to it as a virus. But is “Installed by enterprise policy” really a computer threat? Fortunately no. This program is nothing more but an ad-generating piece of software and falls under the category of Adware.  Now, Adware is a vast software category, which unites various programs, the main purpose of which is to promote certain commercial messages on the users’ screen. In its nature, the Adware is not identical to computer viruses and does not come any closer to the malicious capabilities of a typical malware such as a Trojan virus, a Ransomware or a Spyware infection. Its lack of malicious scripts makes it, basically, harmless to the computer. However, its advertising activities and promotional methods could be seen as quite invasive. Here is what you need to know about them.

“Installed by enterprise policy” Removal

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 


Hold together the Start Key and R. Type appwiz.cpl –> OK.


You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:


Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.


Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove “Installed by enterprise policy” from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove “Installed by enterprise policy” from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove “Installed by enterprise policy” from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


Potential issues that the Adware may cause:

Everything that the Adware does is related to gaining profits for its developers from online advertising. This software typically displays pay-per-click ads and sponsored commercials, which when clicked on, generate pay-per-click income as well as traffic and exposure for the advertised items. Naturally, the people, who benefit from this activity, are usually the owners of the program and the partnering parties, whose ads get displayed and promoted. The users, whose screen is usually taken over by an overwhelming amount of pop-ups, in most of the cases, face difficulties to browse the web in peace and experience frequent irritating ads interruptions. The affected browser may also face some issues like unresponsiveness, frequent crashes, and freezing, which may add up to the annoyance and additionally decrease the quality of the online experience. Not to mention that some Adware pieces may also try to monitor the users’ web activity and collect traffic data about their searches for marketing purposes. These are the main reasons why many security experts classify these pieces of software as potentially unwanted and advise the users to have them uninstalled in order to save themselves from being monitored and disturbed by ads.

Luckily, despite that programs like “Installed by enterprise policy” may employ some quite aggressive methods to expose you to certain sponsored promotions, it is very unlikely that they will cause a serious harm to your computer. What is more, they will never do anything in stealth and will never hide in the system like what Trojans or Ransomware viruses typically do. Still, if you want to gain control over your browser and surf the Internet normally again, it is a good idea to remove the potentially unwanted software with the help of the instructions in the Removal guide that our team has prepared. Once you do that, make sure you don’t catch Adware again because such programs may get installed from different software bundles, free download links, automatic installation managers, ads, spam, torrents and various freeware platforms. That’s why try to avoid their sources and always use the most detailed installation options (namely Advanced/Custom/Manual) if you have to install anything new on your computer.


Name “Installed by enterprise policy”
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Hundreds of pop-ups, banners, ads and blinking boxes may start to appear all over your screen.
Distribution Method Different free installers, spam, torrents, ads, shareware, automatic installers and software bundles.
Detection Tool

Leave a Comment