What Is e5.instantspeedcheck.com?
If e5.instantspeedcheck.com site is opening on your browser by itself and prompts you to subscribe to its push notifications, you likely have adware on your computer. That adware might have been installed along with some free or pirated program you’ve downloaded from the web. Instantspeedcheck.com notifications, if you allow them, will spam you with invitations to visit shady sites, download fake software updates, and so on, popping up on the right side of your screen. This step-by-step guide describes how you can uninstall the adware and remove e5.instantspeedcheck.com pop-ups and notifications from your browser.