Asdfg.pro is occurring because you have adware present on your computer. Adware is usually attached to free software in a way that allows it to install alongside the software. It will not harm your computer as its primary intention is to generate pay-per-click revenue for sponsored sites. This is why you will be getting redirects to Asdfg.pro adware and possibly other sites. These kinds of ads sometimes offer users software that contains malware, so while adware is not malicious itself, it can lead you to danger. In any case, you will not want to keep this adware as it will disrupt your browsing with never-ending pop-ups and redirects. If you want to return to regular browsing and not put your computer in jeopardy, we suggest you delete Asdfg.pro.