A serious vulnerability was recently discovered in Windows OS which, if exploited, could allow an attacker to run arbitrary code with system privileges.
An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (source: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527)
Microsoft recently released a security update to fix this vulnerability. The TTU IT Division recommends updating your Windows products and rebooting immediately to protect yourself and information resources. You may find information about updating your system online at http://update.microsoft.com.
Even if your system was recently patched, it may still need to be rebooted. If you are unsure, please check for updates and then reboot.