I let Claude Code debloat my 4-year-old Windows laptop, and it found 30 GB of junk I never needed

I employed Claude Sonnet 5.5 through Claude Code to debloat my 4-year-old Windows laptop, a 2022 Lenovo Legion 5 Pro. The tool identified 30GB of unnecessary junk files that I could remove within three minutes. To verify the recommendations, I used WizTree, a disk space analyzer, which revealed a cluttered C: drive with 213GB of usage.

My C:\Users folder alone consumed over 110GB, and the Recycle Bin held 20GB of forgotten files. The laptop also exhibited signs of poor maintenance, such as a C:\Temp folder untouched since June 2022 and a 3GB Drivers folder from factory installation.

Claude Sonnet 5.5's prompt included exclusions to prevent accidental deletion of crucial files, such as OneDrive, System Volume Information, Recovery, Dev Drive, C:\Llama.cpp, C:\Games, Models folders, .ckpt files, and the Recycle Bin. After completing the debloating process, I exported the results as a CSV file and a text document detailing every installed app for future reference.

Claude's output categorized the removed items into junk files (8GB), old installers and files (14GB), and approved apps for removal (8GB). The extraneous applications included a ReasonLabs antivirus with seven services, Lavasoft's Web Companion, and a 4.5GB Nvidia shader cache. The debloater spared me hours of manual folder traversal and safeguarded my essential files and settings.