An infected PC can also run slowly.
Many of these sites dont properly check the downloads they offer, so they often include unwanted addons.
Quite simply, by being very careful about what you allow to get onto your PC.
Also, dont punch links in spam emails.
How to Remove Mysearch123.com from computer?
Step 2.1: Remove Mysearch123.com from homepage
Step 2.2: Remove Mysearch123.com add-ons from Internet Explorer.
Step 5 : Remove Mysearch123.com infection fromWindows shortcuts.
Click Here to Download:Adwcleaner.exe
10.2 : Runthat downloaded file(Adwcleaner.exe).
12.1 : DownloadMalwarebytesAnti-Malware Free, then double tap on it to install it.