- Web browser — Firefox.
- Messenger — Telegram.
- Cloud storage — Google Drive and Mega.
- Games — Steam.
- Code editor / IDE — Sublime Text + my customizations and VS Code + my customizations.
- Everything related to maths — Mathematica.
- Markdown editor — I liked Typora when it was free, now I just use
NotionYonote. - LaTeX — TeXlive.
- Image viewer — IrfanView with plugins.
- PDF/fb2 viewer — SumatraPDF.
- djvu viewer — WinDjView.
- Video player — MPC-HC.
- Music player — MusicBee.
- File manager — Double Commander (it's cross-platform, but I only like the Windows version).
- Spotlight alternative — Keypirinha + my customizations.
- Screenshots — Lightshot (also available on Mac, but I didn't need it there).
- Create bootable USB's — Rufus.
- Remove a boot entry — Bootice.
- Change keyboard layout on CapsLock — AutoHotKey + CapsLock.ahk.
- Make your desktop prettier — Rainmeter.
- Archives — WinRAR.
- ISO files — Daemon Tools.