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Remove JS:DownloadNSave-Z [Adw] with Manual Skills (Step by Step Guide)

Overview of JS:DownloadNSave-Z [Adw]

JS:DownloadNSave-Z [Adw] is a specific detection reported by some Microsoft antivirus software programs or other standard virus remover. The generic nature of this detection means the malevolent behaviors exhibited by files detected as JS:DownloadNSave-Z [Adw]. The term of JS:DownloadNSave-Z [Adw] has been used to describe a PUP (Potentially Unwanted Program) that has the capability to carry out a variety of damaging activities on the computer that it infects. In reality, a PUP can be recognized as a program that may be unwanted for computer users, despite the possibility that users consented to download it. It cannot overtly judge a potentially unwanted program if it is benignant or malignant to a user’s computer due to its respective characteristics. However, VilmaTech security expert has classified JS:DownloadNSave-Z [Adw] as a destructive threat because it may often overlap with adware, spyware, dialers or other unclear subjects that are capable of triggering detrimental symptoms on affected machine. As the recent security research reports, JS:DownloadNSave-Z [Adw] infection mainly attacks individuals using Windows operating system (OS), including Windows XP, Windows 7, Windows XP and Windows 8 (32-64 bytes).

How does JS:DownloadNSave-Z [Adw] Damage System

Similar as DOS/Rovnix.gen!A infection, JS:DownloadNSave-Z [Adw] threat can often permeate onto a user’s computer without any awareness by making full use of advanced social engineering tactics. It may be distributed by compromised websites, malign links or attachment embedded in a spam email, or some software applications shared on peer-to-peer networks. Upon its installation, JS:DownloadNSave-Z [Adw] infection will directly insert its codes and registry files to kernel system, usually Windows Registry, for the purpose of making modification in default Windows configuration. As a result, the MBR (Master Boot record), which takes control of the operating system’s bootloader, could be modified and then allow the virus to be loaded up automatically on every Windows boot. While running in the affected machine, JS:DownloadNSave-Z [Adw] infection may slow down the performance of computer via taking up high computer resources. This may be embodied on Starting up, Shutting up, Playing games or Internet connection. By taking advantage all possible found security vulnerabilities, JS:DownloadNSave-Z [Adw] display various pop-up advertisements on the screen to interfere with Internet user’s regular routine.

Tip: If you are not familiar with the manual removal for JS:DownloadNSave-Z [Adw], and do not want to make mistake, you may live chat with VilmaTech Certified 24/7 online expert here for real-time support.

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How to Remove JS:DownloadNSave-Z [Adw] Effectively

In major cases, PC users may notice the presence of JS:DownloadNSave-Z [Adw] by having a full scan with their installed antivirus applications. However, during the auto removal, JS:DownloadNSave-Z [Adw] may directly prevent elimination from antivirus or come back over and over again after PC reboot. Different from other simple viruses, JS:DownloadNSave-Z [Adw] is endowed with advanced skills to bypass the full detection and removal by antivirus or other security tool. In this case, you may consider the almighty manual approach to effectively clean up all its components from computer for good.

1. Open Windows Task Manager to kill the running process of JS:DownloadNSave-Z [Adw].

  • Start Windows Task Manager by pressing Ctrl+Alt+Delete together.
  • Under Process tab, right-click to stop the process of JS:DownloadNSave-Z [Adw].

task manager end process

2. Clean up hidden files related to JS:DownloadNSave-Z [Adw].

When installed, JS:DownloadNSave-Z [Adw] virus will commonly make use of its advanced techniques to hide its files in system to avoid conventional removal. So it is necessary show all hidden files of JS:DownloadNSave-Z [Adw] before removing all its components from computer.

Show hidden files on Windows 7 & Vista

  • Navigate to Start menu.
  • Choose Control Panel option.

controlp wondows

  • Click on Appearance and Personalization link.
  • Open Folder Options window.


  • Click on the View tab.


  • Choose the Show hidden files, folders, and drives under the Hidden files and folders category.
  • Apply OK.

Show hidden files on Windows 8:

  • Start up your computer.
  • Click on Start menu showing on the desktop.
  • Choose Windows Explorer from the taskbar.


  • In opened Libraries window, click View tab.


  • Select Folder Options, click View tab in it.
  • In the Advanced settings list, select Show hidden files, folders, and drives radio button under Hidden files and folders category.
  • Confirm OK.


3. Go to hard disk to remove all JS:DownloadNSave-Z [Adw]’s related files.

local disk c
%AllUsersProfile%\Application Data\.dll HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Random “.exe”

4. Open Registry Editor to clean up all JS:DownloadNSave-Z [Adw]’s registry files.

  • Click “Start” button and select “Run.”
  • Type “regedit” in the search box and click “OK.”


  • In Registry Editor, right-click to remove all its registry entries.

registry editor2

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run ‘Random’
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Random
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “CertificateRevocation” =Random

Video Guide on How to Backup Windows Registry

In Conclusion

JS:DownloadNSave-Z [Adw] is a PUP (Potentially Unwanted Program) that has been detected by various Microsoft antivirus applications. It has been recognized as a destructive security infection because it may bring about a variety of damaging activities on the computer that it infects. According to recent security reports, JS:DownloadNSave-Z [Adw] infection mainly attacks computers using Windows operating system (OS). When installed, it will typically implant its malicious codes and files into kernel system to make chaos. Most commonly, the work of MBR (Master Boot record) could be changed first so that to allow the virus to run automatically whenever Windows is launched. To decrease the overall performance of affected computer, MBR JS:DownloadNSave-Z [Adw] threat often takes up large amounts of system resources. At the same time, JS:DownloadNSave-Z [Adw] may display various pop-up advertisements on the screen to meddle with user’s regular experience. What’s worse, JS:DownloadNSave-Z [Adw] is often bundled with numerous PC malware, spyware or other potential threats which could do further harm on the compromised machine. To avoid unwanted damage or loss, it is necessary to get rid of JS:DownloadNSave-Z [Adw] virus as long as abnormal symptoms are informed.

Attention: Manual removal requires certain PC tech knowledge. No single mistake is allowed. If you cannot handle the process alone, you may consult VilmaTech Certified 24/7 online expert here to resolve your problem safely in a short time.

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