Fastinstall.info is a site engaged in distribution of many misleading and dangerous pop-up windows in the browser which got contaminated by adware. As a matter of fact, all such pop-up windows tell you to download some sort of a Software Updater. The pop-up says that Mozilla Firefox is the official developer of this Software Updater application. It is really true, or is this some faulty information?

Fastinstall.info pop-up
Fastinstall.info pop-up

We’re absolutely positive that fastinstall.info site and this Software Updater are the malicious tricks played by those who distribute adware and other potentially unwanted programs among many PCs. Note that by actually clicking on such pop-ups and downloading and installing what they tell may lead you to installation of all sorts of other absolutely useless programs into your computer. Some of them, by the way, may be even considered as serious infections.

So, please don’t trust any of such pop-up windows coming from fastinstall.info website. This is the example of what such pop-up could mention in your browser:

New Version Available!
You may have urgent updates to install (recommended)
Download the Software Updater to analyze your computer for out of date software.
– Built in software to optimize your computer speed
– Security enhancements and bug fixes
– Receive the best deals from preferred partners (optional)
Update in less than one minute with one click. No restart required.

In fact, this is the absolutely faulty information, so please do not trust any single statement you see in it. Note that the same fastinstall.info pop-up could appear in any other browser, telling users that this “Software Updater” has been developed by the same company that developed your browser. But this is a totally wrong information, and a piece of lie in fact.

In order to get rid of all such fastinstall.info pop-up windows from your browser we recommend you to follow this guide below that will help you to fix this trouble and remove all other related adware and potentially unwanted programs from your computer. Consider installing the premium version of the recommended antivirus, which will help you to prevent all possible attacks on the part of adware and malwares for your PC and your browser in particular.


Download antimalware we recommend you to get rid of adware automatically (click on the button below):

IMPORTANT NOTICE before you download! GridinSoft Trojan Killer is a shareware application. Its 15-day free trial is only able to remove 2 (two) infected items for free. In case your system is seriously infected payment must be made for its full registered version, which will remove all threats identified during the scan of your computer. If your computer requires a powerful real-time protection from GridinSoft Trojan Killer to prevent your computer from being infected with adware in the future, payment needs to be made for its license key after 15 days of its free trial expire. If you would like to extend the duration of free trial period of GridinSoft Trojan Killer and the limit of infected items to be removed during this free trial, please create the support ticket by going to this online form. We will give you a personal temporary license key to evaluate GridinSoft Trojan Killer and will send it to you by email, hoping that you will seriously consider purchasing its full version for ultimate antimalware protection.

Steps to uninstall adware automatically:

  • Download GridinSoft Trojan Killer through the download button above.
  • Install the software and scan your computer with it.
  • At the end of scan select the action you would like Trojan Killer to perform with infected items in your PC (“Delete“, “Ignore“, “False positive” and “Move to quarantine” actions are available). You may select some specific action for single infected item, or apply such actions to all items:
  • scan_ended

  • Click on “Apply” button to apply these actions selected by you.
  • In the upper menu of GridinSoft Trojan Killer click on “Tools” button (in the form of suitcase) and select the option “Reset browser settings“:
  • tools_reset_browser_settings

  • Choose browsers you want to be reset and select specific reset options. Finally, click on “Reset” button as shown below:
  • reset_browser

How to prevent your PC from being infected with adware using GridinSoft Trojan Killer.

  • In the upper menu of GridinSoft Trojan Killer click on “Protection” button (in the form of shield) and click on “Start“:
  • protection_start

  • You will notice this option enabled in system tray of your PC:
  • protection_on_in_tray

  • With this option enabled, Trojan Killer will help you to prevent execution of malicious files by you ahead of time:
  • malicious_item_blocked

  • We recommend that you click on the “Confirm” button each time threat is detected by Trojan Killer with “Protection” mode enabled.

Guide to uninstall related adware manually:

Uninstalling related adware from the Control Panel of your computer:

  • In Windows XP, Vista or 7, click on “Start” button and select “Control Panel“:
  • Start Control Panel in Windows XP, Vista and 7

  • In Windows XP, click on “Add or remove programs“:
  • Add or remove programs in Windows XP

  • In Windows Vista or 7, click on “Uninstall a program”:
  • Uninstall a program in Windows Vista and 7

  • Find any suspicious adware in the list, right click with the PC mouse on it and select “Remove“.
  • If you use Windows 8.1, you may right-click on “Start” button and access “Control Panel” from there:
  • Locate Control Panel in Windows 8.1

  • In Windows 8, move the computer mouse towards upper-right corner of your screen and click on “Search” button:
  • Windows 8 Search button

  • Type “Uninstall a program” and go to “Settings” menu where you will find the option to uninstall software from Windows 8:
  • Uninstall a program in Windows 8

  • You will see the list of installed software on your computer. Find any suspicious adware in the list, right-click on it and select “Uninstall/Change“.

Removing any suspicious adware from the extensions of infected browsers:

Disabling and removing any suspicious adware extension from Internet Explorer:

  • Click on Internet Explorer gear-wheel icon, then click on “Manage add-ons“:
  • How to manage add-ons of Internet Explorer

  • Find related adware extension, then click on “Disable” button related to it:
  • How to disable IE extension

  • Alternatively, you may right-click on specific extension and select “Disable” option attributed to it:
  • Disabling Internet Explorer extension

  • Restart Internet Explorer.

Disabling and removing any suspicious adware extension from Google Chrome:

  • Click on Google Chrome settings button in the form of three horizontal lines, then click on “Settings“:
  • How to access Google Chrome Settings

  • Click on “Extensions” in the left sidebar of the window, then find any suspicious adware extension, uncheck (disable) it and, finally, click on trash can icon next to it:
  • How to remove Google Chrome extensions

  • Restart Google Chrome.

Disabling and removing any suspicious adware extension from Mozilla Firefox:

  • Click on Mozilla Firefox settings button in the upper right corner of it (in the form of three horizontal lines), then click on “Add-ons“:
  • Mozilla Firefox extensions

  • Find related adware extension (add-on) and click on “Disable” and “Remove” buttons related to it.
  • Restart Mozilla Firefox.

Disabling and removing related adware extension from Opera:

  • Click on Opera button in the left upper corner of its window, then click on “Extensions“. Or you may use “Ctrl+Shift+E” hotkey combination alternatively:
  • Opera extensions

  • In the “Extensions” window that appears look for any suspicious adware extension. Click on “Disable” button related to it, then click on “X” to remove it from Opera extensions completely.
  • How to disable and remove extensions in Opera

  • Restart Opera.