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Remove Start Siviewer “Virus” (May 2017 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. 

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

This page aims to help you remove Start Siviewer “Virus”. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

This article will introduce you to a very annoying and irritating program, which falls in the category of the so-called Browser hijackers. The name of this program is Start Siviewer “Virus” and in the next lines, we are going to explain how exactly it operates, why so many people consider it potentially unwanted and how you can safely uninstall it from your system. If your Chrome, Firefox or Explorer has recently been modified – its homepage or search engine has been replaced with some unfamiliar one, and a bunch of unwanted ads, pop-ups and banners have started to redirect you to some strange web locations, then most probably you have this piece of software on your PC, and all of its changes won’t be fully removed unless you completely uninstall it. The end of this article includes a neat removal guide, which will show you how you can manually do that step by step, so stay on this page and read the instructions. 

The real purpose of browser hijackers

The people, who install programs like Start Siviewer “Virus” on their system, usually do that with the idea that they are getting some software, which promises them certain functionality. Most of these pieces of software are usually available for free everywhere on the web (freeware, shareware, torrents, spam, direct downloads, automatic installers, software bundles) and are widely advertised as useful tools, which can enhance the users’ browsing experience, make it safer or somehow improve the overall web experience. Presented this way, no one would refuse the free programs, especially if they come in a nice and quick installation pack that takes no more than a minute to get installed. However, the moment the users install the software, they quickly realize that not much of the promised functionality is real, and even if it is, it comes at the price of a serious browsing disturbance.

Instead of providing some actual benefit, the browser hijacker starts to intrusively mess with the users’ default browser by imposing certain changes in its settings and initiating the generation of various unwanted ads, pop-ups, banners and promotional messages all over their screen. The real purpose of this type of software, in most of the cases, is actually this one: to serve as an aggressive online advertising tool and to employ different intrusive marketing methods (such as Pay-Per-Click or sponsored ads positioning) in order to bring profits for its developers. Start Siviewer “Virus” operates with the same purpose and often times, in its attempts to advertise and generate income, it ends up irritating the users and disturbing their web experience.

Are the hijackers harmful to your system?

The above-described effects of the hijackers could be good reasons for some people to refer to them as potentially unwanted and to eagerly want to uninstall them from their system. It is not difficult to understand why they may even mistake programs like Start Siviewer “Virus” for a virus or some other nasty infection. All in all, these programs initiate certain changes without their approval. However, this does not automatically mean that browser hijackers are viruses or some sort of a harmful computer threat. Their activity is strictly tied down to the generation of advertisements for the needs of the online marketing industry and has nothing to do with the destructive abilities of a virus or some Trojan-Ransomware based infection. All the reputed security experts can confirm that, especially because according to the law the approaches that hijackers implement are not seen as illegal and even though they can be aggressive, are not related to any actual system harm or destructive consequences for the users and their machines.

The most common complaints about browser hijackers

The most common complaints about programs like Start Siviewer “Virus” are related to their ability to impose some unauthorized, and oftentimes, very unwanted changes to the users’ default browser. Additionally, the hijackers may cause sudden crashes of the affected browser, freezing of the screen, general sluggishness and unresponsiveness as well as frequent page redirects, which may land the users on web locations they never intended to visit. Such activities can be very annoying and even disturbing, more so because the ads, pop-ups, and pages that may get displayed, may hide some potential security hazards, infected content, viruses and even malware like Trojan horses and Ransomware. You surely wouldn’t want to catch a nasty infection from some misleading page or fake ad, that’s why we would advise you generally not to trust and click on all the sketchy stuff that gets displayed on your screen. Do all the best to avoid them, or even better, completely remove them along with their source, for the sake of your safety.


Name Start Siviewer
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Unauthorized changes in the users’ default browser, homepage or search engine replacements, page redirects, generation of ads, pop-ups, and intrusive banners. 
Distribution Method This program can commonly be found in freeware, shareware, torrents, spam, direct downloads, automatic installers, software bundles.
Detection Tool

Keep in mind, SpyHunter’s malware detection tool is free. To remove the infection, you’ll need to purchase the full version. More information about SpyHunter and steps to uninstall.

Start Siviewer “Virus” Removal

If you are a Windows user, continue with the guide below.

If you are a Mac user, please use our How to remove Ads on Mac guide.

If you are an Android user, please use our Android Malware 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 Start Siviewer “Virus” 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 Start Siviewer “Virus” from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Start Siviewer “Virus” 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!

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