Do the following if you're going to a "suspect" site or just want to protect your computer from unknown links (such as adware/spyware that could take you to an infected site, or other "payloads" that might come from online activities):

Create a second account on your computer that a "local admin" account, other than your current primary account. Then log in under that account and change your current account so it is a limited user -- a user that does NOT have local admin rights (not a power user). Your user account should not have the right to change settings or install software on your computer. Continue to use that account as your primary, and only switch to the admin account when you want to install software or change settings.

By doing this, malware will not be able to install or modify settings under the privileges of your user account. Even if you accidentally click "OK" to a malicious pop-up, your operating system will protect you and say you don't have sufficient rights to perform the action. It's a small inconvenience compared with dealing with malware infections and hijacks.

PS. --- When installing software or making changes, choose the check-box to enable for all users. There are some settings that only the user can make, so elevate your user account long enough to make deliberate changes, then demote your account again.