1.Embrace free software
It costs nothing, is often more stable and sometimes works better. It also lets you see the code your computer is running, and change it if need be. Compatibility with other programs has greatly improved.

2.Get downloading
Give this software a whirl:
For browsing: Firefox mozilla.org
For secure web chat: CryptoCat crypto.cat
For word processing: LibreOffice libreoffice.org
For graphic editing: GIMP gimp.org