If the URL changes, search the Knowledge Base for Tech Note # 5673. The link above will lead you to Information on Installing the Canon OmniPage SE 4 update for Microsoft Vista. The information provided is seen below.
On July 7, 2016, Canon Inc. released an updated imageCLASS 32-bit & 64-bit Patch for Network Scan & USB Scan for Windows 8, 8.1 and 10. This patch is a more comprehensive update to a prior version that is intended to address an issue that prevents both scanning over a network or with a USB connection after performing a Windows update .
Open the Windows Defender Security Center by either clicking the Windows Defender icon in the System Tray, or by going to Settings -> Update & Security -> Windows Defender