Bobwin.exe

Do not simply delete the file. bobwin.exe often has persistence mechanisms that will recreate it on reboot. Follow this methodical process:

Sophos, Malwarebytes, and VirusTotal historical scans have flagged variants of bobwin.exe as generic Trojans. In these scenarios, the file is not just displaying ads—it may be: bobwin.exe

Unlike ubiquitous processes such as winlogon.exe, bobwin.exe is not a standard Microsoft Windows component. You will not find it on a clean, fresh installation of Windows 10 or Windows 11. Its presence indicates that either you or a piece of third-party software has placed it on your system. Do not simply delete the file

In 90% of cases, bobwin.exe is associated with adware or a PUP. It is commonly bundled with: When you install one of these "free" utilities

When you install one of these "free" utilities and click through the installation without unchecking "recommended" offers, you may inadvertently install a background service or scheduled task tied to bobwin.exe. Once active, this process typically attempts to inject display ads into websites you visit, redirect your search queries through affiliate links, or modify your browser’s new tab page.