How to remove (uninstall) QuizCrystal

Adware, such as QuizCrystal became really widespread recent year. Such programs differ from usual malware in that their actions cannot be determined as really malicious. QuizCrystal can look a worthy tool which displays you the best offers on the Internet, embeds brilliant functions to all browsers, and does different things. If malware will dwell on your computer for 5-7 days or more you will understand, that it is not actually valuable, and will attempt to remove it. But, this can restore itself after the deletion. How QuizCrystal got into your machine? How QuizCrystal can be uninstalled? What is QuizCrystal? In this article we'll answer these questions, and provide you the complete information about this software.


The viruses which show you ads and prevent to surf the Net can be separated on two classes: adware and hijackers. Adware affect the entire system, putting banners and ads on every web-page and even if the browser is closed. The hijackers act only in the browser by manipulating the results of your search queries, providing unreliable results and sending you to harmful web-pages. Both groups of malware use excellent descriptions of the advantages and benefits to make you believe in their utility. The condition of your laptop is getting worse according to the time that QuizCrystal had spent on it. In the end, you'll notice that the laptop is completely clogged with various unwanted, useless or even harmful software. Restarts, the poor performance of the computer, low speed of response, critical errors and spontaneous shutdowns will appear every day. It will be better for your laptop, if you delete the dangerous program until the machine arrives in such awful condition.


There are few actions which need to be performed, before QuizCrystal can work properly. The first thing is to set a task of installation in case of uninstalling, and to gain updating from the developer's website. The browser is the secondary target. Homepage and search system are changed. Properties of browser shortcut are altered and the systems which regulate the quantity of advertisement are switched off. Most browsers nowadays have a service that hides the unwanted ads, pop-ups, banners and other sorts of hype. QuizCrystal switches these features off, and you begin to notice that the amount of advertising in all new tabs is dramatically increased. In addition, to that the amount of ads has grown up observably, its quality has decreased. If the hijacker works on the computer for a week, user just can't browse the Internet because of pop-ups, hype and redirections in all browsers and sometimes even to turn on the machine. So, what is the meaning of this? All actions of QuizCrystal are serving the one object: to coerce the user to make a click. Viral links often lead to third-grade web-pages selling low-quality goods, or services. Those web-pages simply aren't visited by anyone aside from their developers, and the only chance for them is to bait visitors to the site with use of such tricks. Any effort to get anything from this website will summon great issues. We believe, you realize that QuizCrystal is not the good software to store in your system, and it needs to be deleted.

Methods to remove QuizCrystal

Method 1. Use special removal software

Method 2. Remove QuizCrystal manually

Step 1. Uninstall QuizCrystal from the operation system

Step 2. Remove QuizCrystal from the browser (Google Chrome/Mozilla Firefox/IE/Opera/Safari)


If you read the part above, the need of QuizCrystal removal is obvious to you. We'll tell you how to do it swiftly and without risky consequences. There are two techniques with help of which any hijacker may be deleted: by-hand and software way. These options are reliable, tried, and lead to total elimination of any undesired software. However, there are two differences among them. The uninstall in manual mode is composed of multiple doings, and some of them are the operations with very important files. Suchlike operations are really familiar to the experienced user, but if you're reading this – you, most likely are not able to remove QuizCrystal and you need some support. Below this part you will see the particular instructions, and the video guide about the uninstall of dangerous software. But don't forget that antivirus is the best option for newbies. Deletion through antivirus is notably easier than deletion in manual mode and excludes the risk of mistake. Anti-virus offers the great level of protection, and the removal in manual mode ensures none, because you simply delete adware, and leave the door open for all threats. Nowadays, the most acceptable antivirus according to the price/quality ratio is Spyhunter, and we suggest you to try it. This antivirus is extremely popular in all parts of the world, and provides continuous defense. Spyhunter uses viral signature database, which receives updates daily, it doesn't overload the CPU and doesn't conflict with other antiviruses.

Antivirus scanner

Why we recommend SpyHunter antimalware

Detects viruses fully: all files and even registry keys of malware will be found

Protects your system in the future

24/7 free support team

SpyHunter's scanner is only for malware detection. If program detects virus on the computer, you will need to purchase SpyHunter's malware removal tool to delete viruses. Uninstall steps and additional information EULA , Privacy Policy and Threat Assessment Criteria.

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QuizCrystal removal instructions

Windows 7 and Windows XP

1. Uninstall QuizCrystal from Control Panel

  • Start
  • Control Panel
  • Programs
  • Programs and Features
  • Uninstall a program
  • Select QuizCrystal and press Uninstall

2. Delete elements that stayed after uninstalling from Control Panel

  • C:\Program Files\QuizCrystal
  • C:\ProgramData\QuizCrystal
  • C:\Users\YOUR_USER\AppData\Roaming\QuizCrystal

3. Clean registry:

  • Click Start
  • Type Regedit.exe
  • Search for "QuizCrystal" and delete these elements


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How to remove QuizCrystal from Windows 10

1. On the field Search Windows type 'Control Panel'

2. Click Uninstall a program

3. Select QuizCrystal and press Uninstall


How to uninstall from Windows 8

1. Point to the upper-right corner of the screen, move the mouse pointer down, and tap Search.

2. Enter control panel in the search box, and then click Control Panel.

3. Under View by:, select Large Icons, and then click Programs and features.

4. Click the program, and then click Uninstall.

5. Follow the instructions on the screen.

6. Delete QuizCrystal from Control Panel

  • Start
  • Control Panel
  • Programs
  • Programs and Features
  • Uninstall a program
  • Select QuizCrystal and press Uninstall

7. Remove elements like on Win7.


How to uninstall QuizCrystal from Mac OS

1. Click Applications in the Finder sidebar

2. Drag unwanted program to the Trash

3. Empty Trash


Step 2. Remove QuizCrystal from the browser

How to remove QuizCrystal from Internet Explorer

Step 1. Disable add-on:

  • Tools
  • Manage add-ons
  • Remove QuizCrystal

Step 2.Change homepage:

  • Tools
  • Internet Options
  • General
  • Home page
  • Put “about:blank”

Step 3. Change new tab page:

  • Tools
  • Internet Options
  • General
  • Tabs


How to delete QuizCrystal from Google Chrome

Step 1. Remove add-on:

  • Customize and Control Google Chrome
  • Tools
  • Extensions
  • Remove QuizCrystal

Step 2. Change homepage:

  • Customize and Control Google Chrome
  • Settings
  • On startup
  • Set pages
  • Put “about:blank”


How to uninstall QuizCrystal from Mozilla Firefox

Step 1. Delete add-on:

  • Tools
  • Add-ons
  • Remove QuizCrystal

Step 2. Change homepage:

  • Tools
  • Options
  • General
  • Put “about:blank” into homepage field

Step 3. Change new tab page:

  • Put “about:config” into address bar;
  • Confirm the suggestion;
  • Search for “browser.newtab.url”;
  • Reset this field (right-click and choose reset).


How to delete QuizCrystal from Opera browser

Step 1. Disable add-on:

  • Open Opera;
  • Customize and Control Opera;
  • Extensions;
  • Choose QuizCrystal and press button "Remove from Opera"

Step 2. Change homepage:

  • Open Opera browser;
  • Customize and Control Opera;
  • Settings;
  • On Startup;
  • Open a specific page or set of pages;
  • Press button "Set pages" and change Homepage to your favorite one.


How to delete QuizCrystal from Safari

Step 1. Start Safari browser

Step 2. Display a menu of General Safari Settings

Step 3. Reset Safari...

Step 4. Press "Reset"


Video how to reset browser and remove all extensions


Advantages of different removal methods


How to protect the computer?

To prevent these issues in the future, you have to know for sure how QuizCrystal got on your system. This can happen through three main methods:

  • Download from a malicious web-site. Some web-pages spread the malware without any precautions. The promises of suchlike programs are usual, they are: the improvement of Web surfing, acting installation of all drivers and updates for your devices, the performance of some actions in Facebook, showing the latest unpaid content such as music, games and movies, search for advantageous deals on the Net. All of these functions are already integrated into the browsers, or is in the Windows tools list, so, it means that these tools are absolutely needless, and the website that disseminates them is, most likely, dangerous.
  • Viruses may be attached to reliable programs. If you have ever downloaded the toll-free programs, you understand what that means. You download the program, and then you see the window with the proposal to install the miraculous file manager, removal tool, browser, the new add-on for it, and God knows what else. There's no need to make a decision because the installation has already been confirmed, and in some cases, it is really hard to cancel the installation of suspicious software.
  • In some cases user installs malicious software by his own will. Clever written description of the software and its brilliant (and nonexistent) features misinforms the user, and he installs malware.

The penetration via viral e-mail attachment is also extremely popular, but this way is used most of the cases by ransomware and viruses, and not by adware. We suppose that when you're reading these words, QuizCrystal will be totally removed from your workstation. If you prefer the hand uninstall, you should know how to realize that there is a virus on your workstation.

  • Slow launch of OS. The processes that run at startup are, in most cases, the reason of long boot. Check the taskbar, and delete the unwanted programs from Control Panel.
  • Appearance of ads in on every site. If the amount of ads increased noticeably - that is, most likely, virus.
  • Critical faults while using tools, shutdown or reboot of a workstation without your consent.
  • You see a lot of software which you haven't installed. If the program appears on your computer without your consent - it's, nothing else than the virus.

If you notice one of the described above symptoms on your machine - you need to perform an overall scan with assistance of anti-virus, or manually uninstall all the undesired and malicious software from your PC. Don't trust in everything you see on the Web, watch at the status of your machine, and it will be ready for any work.



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