ContributionsMost RecentMost LikesSolutionsRe: Slow internet speeds after installing Hamachi very late reply, but this is how to fix it: 1. uninstall hamachi using the uninstaller that it has. 2. press Win + R and something should pop up on the bottom left of your screen 3. type in ctfmon.exe and hit enter. 4. restart your computer and redo step 2 and it will be fixed.