Remove prefs.js Virus

Do You Know How Dangerous the Prefs.js Is?

Obviously, Prefs.js belongs to the group of Trojan and it can lurk on your PC without any notification. People always have obscure impression when we talk about Prefs.js but it may have been your PC for a long time. it is such an application which cannot be stopped once it is running. in this way, we believe that users need specific introduction and removal guides about it.

prefs.js

One of the characteristic of Prefs.js is that it can hide itself very well on your PC, and it will fake as a program or inside programs. And sometimes it will lurk in Win.ini or Winstart.bat and then even users have found it and will not delete it. what’s more, the common files may be also be a settlement for Prefs.js, and it will be hard to be discovered in this case. The better it can hide, the more harms it will exert.

Prefs.js is used by hackers to invade your PC system, and it is able to make all the things happening smoothly. When it enters your PC, it will monitor users’ activities and steal the data or information. also, its target is the passwords on your PC. it may spy on the password of administration or those of games, banks, or credit card, in order to steal privacy or for some profits suppose.

In this time, the best idea is to get Prefs.js removed from your PC totally. But as users normally have difficult to find it out, we provide you with some removal guides. And please check it.

Terrible System Performance Caused by prefs.js Virus

  • 1. It slow download speed of entire system and makes everything difficult to respond
  • 2. Annoying fake alerts and ads keep popping up to disturb you when you surf the internet
  • 3. It damages your registry to make your computer filled with security exploits
  • 4. It may disable many programs or even system functions of your computer.
  • 5. It rediects you to dangerous websites conatining more infections
  • 6. It silently permite remote access request to help unknown person enter your PC to steal your files
  • 7. It uses advanced tracking technique to spy on your PC activities and get your priavcy

prefs.js Removal Instructions

(Windows OS) Plan A – Get Rid of prefs.js with Manually (Only For PC Experts with Top Techniques)

(Windows OS) Plan B – Delete prefs.js Automatically (Easy and Safe For All PC Users!!)

(Apple Mac OS) Plan C – Remove prefs.js Automatically from Mac OS Computer (Easy and Safe For All Mac OS Users)


Click the Tabs Below to Choose Plan A, Plan B or Plan C


(Windows OS) Plan A – Get Rid of prefs.js with Manual Solution

Attention, Please! For the safety of your computer, before you start the prefs.js manual removal, please confirm the following things:

1. You have rich experience for removing virus and malware manually;

2. Your PC techniques reach the level of PC experts;

3. You are very familiar with Registry and clearly know that what severe consequence may occur for your mistake;

4. You are able to reverse the wrong operations during prefs.js manual removal.

If you do not fulfill the above conditions, Plan A will be risky option for you. Our tech team strongly suggested you to choose Plan B which helps you detect and remove prefs.js safely and easily with professional security tools.

Click Here to Automatically Get Rid of prefs.js with Professional Anti-malware Tool


Step 1 – Uninstall prefs.js and all malware from Control Panel.

1. Press “Windows key + R key” together to open Run window:

delete prefs.js from program list

2. Input “control panel” in Run window and hit Enter key to open Control Panel:

3. Click Uninstall a program:

prefs.js complete removal

4. Right-click prefs.js or other unwanted programs and click Uninstall:

Step 2 – Remove prefs.js from Chrome, Firefox, IE and Microsoft Edge.

Chrome

On Chrome: Launch up Google Chrome> click Chrome menu > click Tools> click Extension> select prefs.js and unwanted extensions> click trash bin

get rid of prefs.js from chrome

Firefox

On Firefox: Open Firefox, navigate to browser menu in the top right > select Add-ons > select prefs.js and unwanted extensions and add-ons > remove it with Disable or Remove button.

delete prefs.js from firefox

Internet Explorer

On IE: Open Internet Explorer >click Tools > click Manager Add-on Tools and Extensions> select prefs.js and unwanted extensions and add-ons > click Remove or Disable button.

get rid of prefs.js on IE

Microsoft Edge

On Microsoft Edge: (Reset default homepage and search engine to remove prefs.js associated hijacker)

Reset Edge homepage: Click More (…) > click Settings > select A specific page or pages under “Open with” > select Custom to type your favorite website.

get rid of prefs.js from Edge

Reset Edge homepage: Click More (…) > click Settings > Click View advanced settings > Click <Add new> under “Search in the address bar with”> type your favorite search engine >click Add as default.

Step 3 – Delete malicious files of prefs.js from Registry.

1. Press “Windows key + R key” together to open Run window:

2. Input “regedit” in Run window and hit Enter key to open Registry:

prefs.js easy removal tool

3. Locate and remove registry files created by prefs.js and other threats as below:

HKLM\SOFTWARE\Classes\AppID\<random>.exe
HKEY_CURRENT_USER\software\Microsoft\Internet Explorer\Main\Start Page Redirect=”http://<random>.com”
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\virus name
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon “Shell” = “%AppData%\<prefs.js>.exe”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run ‘Random’ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Random

(Windows OS) Plan B – Delete prefs.js Automatically from Windows PC

Automatic Removal is an PC security solution that relies on Professional Anti-malware Tools. It is always the best, fastest and safest way for PC users to beat computer virus and malware. We recommend all PC users choose this easy way to remove prefs.js and any other PC threats:

Step 1 – Start a scan with SpyHunter to remove prefs.js completely.

1. Click download button below to safely Download SpyHunter :

dlsh4

2. Run SpyHunter-Installer.exe to install SpyHunter via its installer:

how do i remove prefs.js quickly

3. Once the installation finishes, please click Start New Scan to search and remove prefs.js and hiding threats.

4. Click Fix Threats to remove prefs.js and other viruses completely.

Step 2 – Maximize performance of your PC with RegCurePro.

1. Click download button below to Download RegCurePro:

2. Run RegCureProSetup to install RegCurePro:

learn to solve prefs.js
3. Once the installation finishes, please click Click to Scan to search damaged registry files and system errors caused by prefs.js:

way to solve prefs.js

4. Once the scan finishes, please click Fix All to fix Registry corrupted by prefs.js and optimize system to make it run as a new system:

way to eliminate prefs.js

Step 3 (Optional) – Re-scan your computer with 100% Free Avast Internet Security:

In case the prefs.js virus still stays on your computer, please use free version of Avast Internet Security to scan your entire system and remove all detected threats. It can provides overall protection to your computer and secure your online activities and secure your privacy. Now download Avast Internet Security with 60 days free trail here:

(Mac OS) Plan C – Remove prefs.js Automatically from Mac OS Computer (Easy For All Mac OS Users)

In case your system has been attacked by prefs.js and other infections, MacKeeper will be the easiest and fastest way to clean up them and cure your Mac.Mackeeper is a reliable and powerful Mac protection and optimization software which helps you keep your Mac clean, fast and safe. Mackeeper is one of the best Mac OS security software designed to offer Mac users with best experience. Mackeeper has received great reputations from its users and it is winning trust from more and more users. As a 16 in 1 application is the most advanced way to care for your Mac. It is worth to get it. Follow steps below to delete the threats now:

1. Download and Install MacKeeper by clicking the image below:

2. Once MacKeeper is installed, use the Find & Fix feature to check the status of your Mac and remove all infections and fix all problems:

prefs.js quick removal tool

3. If the Find & Fix did not solve all issues, you can use the Geek on Demand feature to get a Apple expert to help you as an personal assistant. The Apple Certified Support Professional expert will provide solutions for any technical problem, whether a minor nuisance or a catastrophic failure.

get rid of prefs.js safely

Mackeeper is a package of 16 applications, you can get almost all necessary tools for your Mac and everything will become easy and convenient on your machine. Here are some powerful tools packed in MacKeeper:

Internet Security – Protect your Mac from identity theft fraud (phishing), malware, spyware, adware, viruses and identity theft while using the Internet.

delete prefs.js

Files Recovery – Deleting files does not necessarily mean losing them forever. Now you can recover even after they are deleted from the trash.

prefs.js removal help

Files Finder – Search and quickly find any lost or misplaced file, even without knowing what folder is.

remove prefs.js

Disk Usage – Look at the size of the folders on your hard drive to see at a glance which folders take up more space.

delete prefs.js in mac

Anti-theft – If you steal your Mac, theft continues its location and even makes a snapshot of the thief with iSight.

mkthef


 

Warm Reminder – Something You Should Know After Removing prefs.js

To avoid prefs.js coming back and prevent attacks from other infections, follow these basic rules while using your computer:

– You should always choose Custom Installation no matter what software you are going to install;

– Uncheck hidden options which attempt to install additional programs you never need;

– Scan all downloaded attachments of email before you open them;

– Never open any attachments of unknown or spam emails;

– Do not visit adult / porn websites;

– Do not update any app from nonofficial websites.