If you use your pc or laptop for standard applications and you don't require any special software, consider using Linux.
It is way faster and smoother, doesn't crash and runs all your daily applications.
If you want a Widows style OS consider Zorin OS, if you prefer Apple style with a Dock go for elementary os. The operating systems are ubuntu based and have great documentation for installing and maintaining. You can install well developed open source software such as thunderbird (outlook), libreoffice (office) and any browser you prefer. The programs have the same functionality as the professional versions proprietary software and come with regular updates. A program called playonlinux makes you run almost all windows programs on linux. You don't have to worry about virusses and system crashes and the system is so smooth and light that it even runs good on older hardware.
