Welcome to Anvisoft forum and thanks for posting your problem here. I am Ivy and I am going to help you with your problem.
You can block the website by modifying your host file with following tips:
1 Click "Start" and type “C:WINDOWS\system32\drivers\etc” in the Search field at the bottom of the Start menu.
2 Right-click on the “hosts” file and select "Open." Choose "Notepad" as the program you wish to use to open the file, and click "OK."
3 At the bottom of the document, type “127.0.0.1” (without the quotes), followed by at least one space, followed by the URL of the website you want to block. For example, if you wanted to block “bing.com” you would enter “127.0.0.1 bing.com”. Do not put either "http:" or "www" in front of the names of websites you wish to block; doing so will result in the site not being blocked. You are blocking the entire site regardless of protocol.
4 Save the document and restart your computer. Any attempt to visit the site you blocked in Chrome or any other browser will result in an error message.
You can also take the tool developed by Anvisoft to block any website you want.
Download Anvi Ad Blocker->install and run Anvi Ad Blocker->click MORE on top right of its main screen and then select Settings->Select Black List->click Add URL and type www.allwaysearch.com into the input window->Click OK to save the change.
Direct download link: http://www.anvisoft.com/product/anviadblockerpro.html
After downloading and installing Anvi Ad Blocker v2.0, you can enjoy a 15-day free trial, after the trial period ended, you can directly buy it if you want to continue block the website.