The appearance of unwanted firstinst.com pop-ups in your browser means that your computer is infected with an ‘ad-supported’ software (also known as adware). It makes changes to the PC settings and configures itself so as to start automatically each time the computer is turned on. Immediately after startup, the ad-supported software begins to monitor the user’s actions and insert ads directly into the open windows of the Firefox, Google Chrome, Internet Explorer and MS Edge. So, if you notice that your web browser has become show this site, then you do not need to wait , you need to follow the few simple steps below and remove firstinst.com advertisements as soon as possible.
Most often, the adware affects the most common web-browsers like the Chrome, Firefox, Internet Explorer and Edge. But such the harmful software as well may infect another web browsers by changing its shortcuts (adding an argument like ‘http://site.address’ into Target field of a internet browser’s shortcut). So every time you open the web-browser, it will reroute to the unwanted firstinst.com web site. Even if you setup a new homepage, an unwanted site will be the first thing you see when you open the Google Chrome, Firefox, MS Edge and Internet Explorer.
While your PC is infected with the ad-supported software, the Firefox, Google Chrome, Microsoft Internet Explorer and MS Edge may be rerouted to firstinst.com annoying page. Of course, the adware may not cause damages to your files or Windows system, but it may show a lot of unwanted ads. These advertisements will be injected within the content of web-sites that are you opening in your browser and can be varied: pop-up ads, in-text ads, different sized banners, offers to install an questionable software. The advertisements will appear on all pages, including web-sites where previously you have never seen any advertising links.
So, obviously, you need to get rid of the ad supported software as quickly as possible. Use the free step-by-step guide below. This guide will help you clean your machine and thereby delete the firstinst.com annoying pop-up ads.
How can you prevent your system from the attack of firstinst.com pop-ups
The adware usually come bundled with freeware that downloaded from the Internet. Which means that you need to be proactive and carefully read the Terms of use and the License agreement properly. For the most part, the adware will be clearly described, so take the time to carefully read all the information about the program that you download off the Net and want to install on your system. In the Setup wizard, you should choose the Advanced, Custom or Manual installation mode to control what components and additional applications to be installed, otherwise you run the risk of infecting your computer with an infection like the ‘ad supported’ software that generates a lot of firstinst.com advertisements.
How to manually remove firstinst.com ads
Without a doubt, the adware is harmful to your computer. So you need to quickly and completely delete this malicious software. To get rid of this adware, you can use the manual removal which are given below, or use an anti-malware tool for removing malicious software, such as Malwarebytes Anti-malware and AdwCleaner (both are free). I note that we recommend that you use automatic removal, that will assist you to delete firstinst.com advertisements easily and safely. Manual removal is best used only if you are well versed in computer or in the case where ‘ad supported’ software is not removed automatically.
- Uninstall suspicious and unknown software by using Windows Control Panel
- Remove firstinst.com ads from Mozilla Firefox
- Remove firstinst.com pop-up ads from Chrome
- Remove firstinst.com pop-ups from IE
- Disinfect the browser’s shortcuts to get rid of firstinst.com redirect
- Get rid of unwanted Scheduled Tasks
Uninstall suspicious and unknown software by using Windows Control Panel
First, you should try to identify and delete the program that causes the appearance of unwanted ads and browser redirect to unwanted web-pages, using the ‘Uninstall a program’ which is located in the ‘Control panel’.
Windows 8, 8.1, 10
Press Windows key
, then click Search 
. Type ‘Control panel’and press Enter like below.
When the ‘Control Panel’ opens, press the ‘Uninstall a program’ under Programs category as shown below.
You will see the ‘Uninstall a program’ panel as shown on the screen below.
Very carefully look around the entire list of installed programs. Most likely, one or more of them are responsible for the browser redirect to unwanted firstinst.com pop-up ads. If you have many programs installed, you can help simplify the search of malicious applications by sort the list by date of installation. Once you have found a suspicious, unwanted or unused program, right click to it and press ‘Uninstall’.
Windows XP, Vista, 7
First, click ‘Start’ button and select ‘Control Panel’ at right panel as shown on the image below.
When the Windows ‘Control Panel’ opens, you need to click ‘Uninstall a program’ under ‘Programs’ as shown on the image below.
You will see a list of programs installed on your PC system. We recommend to sort the list by date of installation to quickly find the software that were installed last. Most likely they responsibility for the appearance of unwanted advertisements and browser redirect. If you are in doubt, you can always check the program by doing a search for her name in Google, Yahoo or Bing. When the program, you need to delete, is found, simply press on its name, and then press ‘Uninstall’ as shown on the screen below.
Remove firstinst.com ads from Mozilla Firefox
First, start the Firefox. Next, click the button in the form of three horizontal stripes (
). It will show the drop-down menu. Next, click the “Help” button (
).
In the Help menu, click the “Troubleshooting Information”. In the upper-right corner of the “Troubleshooting Information” page, click “Refresh Firefox” button.
Confirm your action, click the “Refresh Firefox”.
Remove firstinst.com pop-up ads from Chrome
Like other modern web browsers, the Chrome has the ability to reset the settings to their default values and thereby get rid of the redirect to firstinst.com unwanted ads which is caused by the ad supported software.
At first, run the Google Chrome. Next, press the button in the form of three horizontal stripes (). It will appear the main menu. Click on the option named “Settings”. Another way to show the Chrome’s settings – type chrome://settings in the internet browser adress bar and press Enter.
The web browser will open the settings screen. Scroll down to the bottom of the page and click on the “Show advanced settings” link. Now scroll down until the “Reset settings” section is visible, as shown in the figure below and press the “Reset settings” button.
The Google Chrome will display the confirmation dialog box. You need to confirm your action, press the “Reset” button. The application will launch the procedure of cleaning. When it is finished, the web browser settings including the ‘block pop-ups’ option back to the values that have been when the Chrome was first installed on your computer.
Remove firstinst.com pop-ups from IE
First, start the Internet Explorer, then click 
button. Next, click “Internet Options” as shown on the screen below.
In the “Internet Options” screen select the Advanced tab. Next, click the “Reset” button. The IE will display the “Reset Internet Explorer” settings dialog box. Select the “Delete personal settings” check box and click Reset button.
You will now need to reboot your PC for the changes to take effect. It will restore the IE’s settings such as startpage, new tab page and default search engine to default state, disable ad-supported web browser’s extensions and thereby remove the redirect to firstinst.com unwanted site.
Disinfect the browser’s shortcuts to get rid of firstinst.com redirect
Once the adware is started, it can also change the internet browser’s shortcuts, adding an argument such as “http://site.address” into the Target field. Due to this, every time you launch the browser, it will be redirected to an annoying advertisements.
To clear the web-browser shortcut, right-click to it and select Properties. On the Shortcut tab, locate the Target field. Click inside, you will see a vertical line – arrow pointer, move it (using -> arrow key on your keyboard) to the right as possible. You will see a text which starts with “http://” which has been added here. You need to remove it.
When the argument is removed, click the OK button. You need to clean all shortcuts of all your internet browsers, as they may be infected too.
Get rid of unwanted Scheduled Tasks
Once installed, the adware can add a task in to the Windows Task Scheduler Library. Due to this, every time when you open your computer, it will display firstinst.com annoying web-page. So, you need to check the Task Scheduler Library and get rid of all tasks that have been created by adware.
Press Windows and R keys on your keyboard simultaneously. It will open a prompt that titled as Run. In the text field, type “taskschd.msc” (without the quotes) and click OK. Task Scheduler window opens. In the left-hand side, press “Task Scheduler Library”, as shown in the figure below.
Task scheduler, list of tasks
In the middle part you will see a list of installed tasks. Select the first task, its properties will be display just below automatically. Next, click the Actions tab. Necessary to look at the text which is written under Details. Found something such as “explorer.exe http://site.address” or “chrome.exe http://site.address” or “firefox.exe http://site.address”, then you need remove this task. If you are not sure that executes the task, then google it. If it is a component of the unwanted software, then this task also should be removed.
Further click on it with the right mouse button and select Delete as shown below.
Task scheduler, delete a task
Repeat this step, if you have found a few tasks that have been created by unwanted programs. Once is done, close the Task Scheduler window.
Remove firstinst.com with Malwarebytes
Delete firstinst.com pop-up ads manually is difficult and often the adware is not completely removed. Therefore, we recommend you to use the Malwarebytes Free which are completely clean your computer. The Malwarebytes is a reputable malware removal program. It can automatically detect and delete the adware (also known as ‘ad-supported’ software) of the your computer. Moreover, this free program will help you to delete web browser hijackers, malware and toolbars that your PC may be infected too. You can follow the step-by-step guide below to get rid of the firstinst.com unwanted redirect completely.
Download Malwarebytes Free by clicking on the link below.
326464 downloads
Author: Malwarebytes
Category: Security tools
Update: April 15, 2020
Once downloaded, close all programs and windows on your computer. Open a directory in which you saved it. Double-click on the icon that’s named mb3-setup like below.
When the installation begins, you will see the “Setup wizard” that will help you install Malwarebytes on your machine.
When setup is done, you will see window as shown on the screen below.
Now click on the “Scan Now” button to start scanning your PC for the adware which causes the reroute to firstinst.com web site. This process can take some time, so please be patient.
Once the scan is finished, make sure all entries have “checkmark” and press “Quarantine Selected” button. The Malwarebytes will start removing the ad supported software related files, folders, registry keys. When the disinfection is done, you may be prompted to reboot the personal computer.
The following video explains the few simple steps above on how to delete ad-supported software with Malwarebytes Anti-malware.
Block firstinst.com pop-up ads and other unwanted web-pages
To increase your security and protect your PC against new unwanted advertisements and malicious sites, you need to use application that blocks access to malicious ads and web sites. Moreover, the program can block the display of intrusive advertising, which also leads to faster loading of pages and reduce the consumption of web traffic.
Download AdGuard program by clicking on the following link.
26659 downloads
Version: 6.4
Author: © Adguard
Category: Security tools
Update: November 15, 2018
When the download is complete, launch the file named adguardInstaller. You will see the “Setup Wizard” screen as on the image below.
Follow the prompts. Once the install is finished, you will see a window as shown in the figure below.
You can click “Skip” to close the install application and use the default settings, or press “Get Started” button to see an quick tutorial which will help you get to know AdGuard better.
In most cases, the default settings are enough and you do not need to change anything. Each time, when you start your computer, AdGuard will start automatically and stop popup ads, web-pages like firstinst.com, as well as other dangerous or misleading sites. For an overview of all the features of the program, or to change its settings you can simply double-click on the AdGuard icon, that is located on your Windows desktop.
Scan your PC system and get rid of firstinst.com redirect with AdwCleaner.
This removal program is free and easy to use. It can scan and delete adware, browser hijackers, malware and unwanted toolbars in Google Chrome, Microsoft Internet Explorer, Firefox and MS Edge web-browsers and thereby restore back their default settings (homepage, new tab and default search engine). AdwCleaner is powerful enough to find and remove malicious registry entries and files that are hidden on the system.
Download AdwCleaner utility by clicking on the link below. Save it to your Desktop so that you can access the file easily.
225301 downloads
Version: 8.4.1
Author: Xplode, MalwareBytes
Category: Security tools
Update: October 5, 2024
When downloading is finished, open the directory in which you saved it and double-click the AdwCleaner icon. It will run the AdwCleaner utility and you will see a screen as on the image below. If the User Account Control prompt will ask you want to show the application, press Yes button to continue.
Now, click the “Scan” . This will start scanning the whole PC system to find out adware which cause a redirect to firstinst.com ads.
When it has finished scanning, it will open a list of all items detected by this tool as shown below.
You need to click “Clean” button. It will display a dialog box, press “OK” to begin the cleaning process. Once the cleaning process is finished, the AdwCleaner may ask you to reboot your system. After restart, the AdwCleaner will show the log file.
All the above steps are shown in detail in the following video guide.
Finish words
After completing the guide outlined above, your PC should be clean from malware and ‘ad supported’ software. The Chrome, FF, Internet Explorer and Edge will no longer show firstinst.com annoying pop-up ads and redirect you to unknown web-sites. Unfortunately, if the instructions does not help you, then you have caught a new type of ad supported software, and then the best way – ask for help.
- Download HijackThis from the link below and save it to your Desktop.
HijackThis download
4711 downloads
Version: 2.0.5
Author: OpenSource
Category: Security tools
Update: November 7, 2015
- Double-click on the HijackThis icon. Next click “Do a system scan only” button.
- When it has finished scanning, the scan button will read “Save log”, press it. Save this log to your desktop.
- Create a Myantispyware account here. Once you’ve registered, check your e-mail for a confirmation link, and confirm your account. After that, login.
- Copy and paste the contents of the HijackThis log into your post. If you are posting for the first time, please start a new thread by using the “New Topic” button in the Spyware Removal forum. When posting your HJT log, try to give us some details about your problems, so we can try to help you more accurately.
- Wait for one of our trained “Security Team” or Site Administrator to provide you with knowledgeable assistance tailored to your problem with the unwanted firstinst.com .
