7-Zip

7-Zip is a free, open-source file archiver that opens almost everything and compresses tighter than most paid rivals. A plain interface is the only real cost.
Rufus

Rufus is the bootable USB tool most technicians reach for first: a free, open source Windows utility that turns a spare stick into working install media in minutes.
CCleaner

CCleaner is a PC cleaner for junk files, browser traces, and uninstall leftovers on Windows, Mac, Android, and iOS. The free tier still does the real work.
Internet Download Manager

Internet Download Manager speeds up big downloads and resumes broken ones, but the 30-day trial turns into a paid license once it runs out.
IObit Uninstaller

Where the Windows uninstaller stops, IObit Uninstaller keeps going, clearing the registry keys and leftover files Settings leaves behind on every removed program.
Advanced SystemCare Free

Advanced SystemCare is a Windows system utility that cleans, speeds up, and locks a cluttered PC down in one dashboard, worth weighing against a leaner cleaner.
Sumatra PDF
Sumatra PDF is a free, no-frills PDF reader that opens files on Windows almost instantly, without Adobe’s bloat. See who it actually fits.
WPS Office

WPS Office is a free office suite with Word, Excel, and PowerPoint compatible tools, PDF editing, and AI Copilot built in across nearly every device.
Mozilla Firefox

Mozilla Firefox is a free, open-source web browser that runs on its own independent engine, built around strong privacy defaults and deep customization.
Avast One: Free Antivirus

Avast One’s free antivirus tier now bundles a VPN, AI scam detection, and breach monitoring, but its data-selling history still shapes the trust question.