This is a technical deep-dive based on a post I originally wrote on my company blog. I wanted to share the C# implementation details here for fellow Windows devs.

We’ve all seen them. IT admins grab a popular one-click Windows hardening script off the web and push it across a fleet of office PCs, just to tick boxes for a security audit.

The intent is reasonable enough. The outcome, more often than not, is a mess.

A few days later, finance is complaining that their network printer stopped working, and an old internal ERP client can no longer talk to its database. The worst part? Most of these scripts only know how to disable and block. They ship with no real rollback logic at all. The admin ends up manually rebuilding Windows on affected machines.

If your hardening tool does not include a reliable, tested rollback mechanism, it is not really a security tool.…