How can We Remove!dll Virus and Fix Dnsapi.dll Issue

Are you being infected by!dll virus? The infection of this virus is about DNS damages, something that will infect the connection of the internet. With this virus inside system, the network connection will be broken, making you unable to surf the internet. If your computer has troubles to connect to the internet, do check Dnsapi.dll file under C:windowsSystem.

More information about!dll virus

Trojan:Win64/Patched.AZ.gen!dll is a Trojan virus which makes Dnsapi.dll be infected. Once it infects Dnsapi.dll is infected by this virus, the network of the infected computer will be broken as dnsapi.dll is a module that contains functions used by the DNS Client API. According to experts, dnsapi.dll fault prevented any browsers from opening but did not stop data transfer. Then, one of the risks victims might face is that sensitive data will be stolen. As we say, the main target of this Trojan virus is Dnsapi.dll, victims will take many risks of being hacked bu other threats.1


About Dnsapi.dll:


“ DNSAPI.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. You can fix your DNSAPI.dll problem by downloading the correct DNSAPI.dll file. The following information can help you determine if DNSAPI.dll is a Windows system file or if it belongs to an application that you can trust.”


This is a high risk virus as it is a member of Trojan family. One of the troubles caused by this type of threat is that they will completely damage the entire system and you may find yourself turning to often is problem solving – so much so that developing a quick method of problem solving is critically important. The most obvious symptom of being infected by such Trojan virus is that the internet connection will always fail no matter what victims do. Most people start out just looking for a solution in order to fix the network connection. But it is best at the beginning to make sure whether the DNS related files are normal. However, most victims are not able to find out the reason why internet connection is unavailable because the original cause is a Trojan. Before solving this trouble, victims should have a solid grip on the relevant facts and issues.


Where does!dll come from?

Reflect on the browsing activities in light of computer security, especially what third parties are just downloaded recently. Is there any programs that contain malicious bundles, or is it possible that any insecure links or pop up is clicked accidentally? In fact, all the websites, software, email attachments, media files, pop up ads, links and updates can be the carrier of this virus. Before installing third parties, check what other things are contained on bundles box and uncheck the unwanted and suspicious items first. List all the underlying factors you can think of that contribute to this virus infection – programs, files, updates or any other possible causes. After, list the possible carriers in time order according to data. If you want, take some time thinking about where the problem really lies. However, even the may cause of Trojan virus infection is found, there is no doubt that finding the cause can not solve the problem entirely. You still need to stop it. The measure of dnsapi.dll damage is not whether you can connect to the internet or not, but how is the file exactly and how can you deal with those troubles and whether you can keep them from recurring. Back to the Trojan issues, this virus is able to compromise your privacy and security as well as changing system settings forcibly. The computer performance will be degraded and the infection computer will not run so stably due to its attack. Troubles and dangers can vary widely from one situation to another, so the most effective problem solvers rely on an effective security tool.

An effective removal tool can help you avoid unnecessary conflicts, mistakes and damages. You can remove all threats and fix malware issues with several clicks. Try this simple step to fix malware issues with auto removal tool:

Download button

And if you have gathered experience as a computer expert, you can try the manual removal guide.

Self-Help Guide

How can We Remove!dll Virus and Fix Dnsapi.dll Issue


Step one. Locate and check Dnsapi.dll files on computer

I am using window 7, 32bit. Then , Dnsapi.dll is located in the C:WindowsSystem32 folder. As a result, go to this folder and check it to see whether it is damaged by!dll.

Open “my computer” and click local C disk


Once local C disk is opened, find “windows” folder


After, open “windows” subfodler and find “system32”, click it to open5


Find “drivestore” or other folder which Dnsapi.dll locates.6


(Note: it depends on your computer, Dnsapi.dll may locate in different subfolder on different computers. Do check the subfolders under “system32” until we find it. )


As we locate this file, right click on it and then select on “properties” option


When it is “properties” window pops up, select “details” option


Go to “details” page, if any detailed information of this file is missing, such as file version, product name and copyright, it means that this file is corrupted by virus.


If any detailed information of this file is missing or blank, we can confirm that this file is damaged by virus. And this must be the reason why we get browser error or DNS issue when we want to surf the internet.


Step two. Restart computer in windows safe mode


Click windows or start icon at the lower left corner, click “restart” option.


Press F8 key while the BOIS screen is loading

After, select “safe mode” option by using the arrow keys on keyboard

Wait a few seconds, then our computer will be restarted in window safe mode


Step three. Run CMD Commands to check system files


* System File Checker


” System File Checker is an automatic scan and repair tool that focuses on Windows system files. You will need to run the command prompt with administrator privileges and enter the command “sfc /scannow”. If any corrupt or missing files are found, they’ll be automatically replaced using cached copies kept by Windows for just that purpose. The command can require a half-hour to run on older notebooks.”

As the computer is restarted in windows safe mode, click start icon at the lower let corner, put “CMD” in search box. After, we will get “CMD” from search result.


Right click on “CDM”, then select “run as administrator” option


Then we will get a black pop up window


Add “sfc / scannow” command after “windows/system32”



Then the system files checker will automatically run to scan computer files. I may tale a few minutes to finish.


System files checker will scan the entire system to find corrupted files and then repair them. As the scan the repair are both finished, close to exist.


Step four. Remove unknown startup items


Click start or windows icon at the lower left corner, put “msconfig” and select the related program found on computer.


Select “startup” option when we get the new pop up window


Unckeck all unknown items from “system configuration” window,then click “OK” to save and exist


Then we will get a new pop up window saying that we need to restart computer to apply these changes. Just click “Restart” to restart computer in normal mode


Step five. Check Dnsapi.dll again



Open “my computer” and click local C disk


Once local C disk is opened, find “windows” folder


After, open “windows” subfodler and find “system32”, click it to open


Find “drivestore” or other folder which Dnsapi.dll locates.


(Note: it depends on your computer, Dnsapi.dll may locate in different subfolder on different computers. Do check the subfolders under “system32” until we find it. )


Then right click on this files and select “properties” option


As the properties window pops up, select “detail”


Check all detailed information about this files, if all of them are completed and nothing is missing, it means that this file is repaired.



Step six. Download SpyHunter to clear malicious traces

Once a computer is infected by malware, there are always some malicious programs, files and codes are downloaded and introduced on computer system. Even if we remove malware manually, there are always some hidden files and traces are left on computer. These malicious traces will continue infecting our computer if we do not take actions to remove it. As a result, infections are in control of computer with time passing by. Only auto-fix tool can clear malicious trance. So, to avoid being hacked gain, please download SpyHunter to clean system.


SpyHunter has the power to detect and clear all dangerous threats, unwanted programs, malicious trace, risky registries and malware. It turns a dangerous computer though into a safe computer with only several clicks. Sometimes, SpyHunter is a necessary tool for your computer because it not only help to remove virus but also increase the defense ability of computer, making infections and viruses are not able to break into system. If there is any security tool on computer, malware just need to take a little extra effort to infiltrate system.


Stop malware with only one click!


When you are surfing the internet, run Spyhunter to stop annoying pop up ads!
When you are reading emails, run SpyHunter to avoid clicking insecure links on attachments!
When you are downloading third parties, run SpyHunter to intercept advertising bundles!
When you are purchasing online, run SpyHunter to be away from phishing sites!

Step 1. Download SpyHunter Here and Save related files.

download SPYHUNTER



Step 2. Double click the Exe file, choose run.


There will be a language option window pop up, select your language and then click OK.

step 2. languageoption

Step 3. Click continue to forward SpyHunter installer

step 3. spyhunter installer

Step 4. Accept EULA and Privacy Policy to End User License Agreements

step 4. User License Agreements

Step 5. Wait several seconds to complete the installation

step 5. installtion

Step 6. Once the installation is completed, click exit.

step 6. exit

Step 7. Right now, SpyHunter is automatically running on your computer, run a entirely scan on your computer.

step . scan

Note: Do not worry if SpyHunter automatically updates because it will update at the beginning once you download an old version.

Step 8. As long as the scan is finished, remove all threats from your computer by clicking Fix Threats.


The internet is not safe and our computers need to be protected. For somethings, we can not stop when we download but we still fix it with Spyhunter.


The following video offers a complete guide for Trojan:Win64/Patched.AZ.gen!dll Trojan Horse Virus removal. You’d better watch it in full-screen mode!

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