If you have an issue connecting to the internet and getting error like ‘DNS servers not responding’ please check your ipv4/6 preferred DNS server , sometimes IPV4 preferred DNS server kept changing . No matter how many times you change it to ‘Obtain DNS server automatically’ or the preferred and alternate DNS servers to what they actually are they can revert back . “DNS Server issue” is generally occured due to harsh VIRUS attack , auto DNS changing software or an Antivirüs software’s Secure DNS settings but sometimes None of the solutions works (even Formatting) in such situation Dns Lock can help you to keep ipv4/6 preferred DNS servers constant, it can prevent them to changing automatically , it is a portable freeware tool which prevents malware (or anything else) changing your IPv4/6 DNS addresses

What is New (Monday, January 9, 2023)

1. [Fixed] The program interface and icons are too small
2. [Fixed] The software can be closed from the task manager.
3. [Added] Refresh option
4 .[Added] High contrast support
5. [Added] Some codes have been Improved

How to use

After downloading, extract Dns Lock to your desired location, then run it , write your desired DNS ips into the box (separate with comma) and use “install service” button

You can Protect your Ipv4 DNS ip , IPv6 DNS ip or both of them , Once you’ve chosen or entered your details, the program applies them to your system and installs a Windows service to keep them safe

DNS Lock offers you a choice of Open DNS and Google DNS Servers, too , Program will start automatically with Windows , if you want to stop it , use “Uninstall service” button

There is a small Lock icon (indicator) on the left side of the DNS combo and it shows us the DNS status (Locked or not locked)

Dns Lock ’s Cmd parameters

Supported operating systems: Windows 11 , Windows 10 , Windows 8.1 , Windows 8 , Windows 7 , Windows Vista , Windows Xp – (x86 & x64)

File: DNS-Lock_x64.exe │ Virustotal
MD5: 03ec3fd0fa2e5534f6fbfee35991032f
SHA1: 415f171238855a2cc7a593be4933dfaa1d13877a

File: DNS-Lock.exe │ Virustotal
MD5: 39c4c3cfdad2b7d4c2e0fb3d705d3bd8
SHA1: 1e63604c0dfe637e4ea784bc8cb64ac38148fb59