How to remove Adblock

Right click (Ctrl+Click on a mac) the AdBlock toolbar button and choose "Remove from Chrome".

Uninstalling AdBlock completely removes it from your browser, as if it had never been installed, and leaves no trace of itself on your system

OR

Click the trash can icon next to AdBlock in chrome://extensions

Reinstall after uninstalling:
Go to getadblock.com and click the button that says "Get AdBlock Now!"

If these instructions don't work: Sometimes something might happen, causing Chrome to refuse AdBlock's uninstallation. To resolve this, go to chrome://extensions and find AdBlock in the list. Try clicking the trash-can icon there (if you still can't, feel free to disable AdBlock - Chrome won't let us run - then contact us by making a new discussion)