TEXworks will save its preferences in the Register:
\HKEY_USERS\S-...\Software\TUG\TeXworks. If this is erased, it will be recreated with default values at the next use.
We also use the words compilation and compile for the same action; indeed LATEX works on the source file to produce a .pdf output, so there is a compilation.
Comprehensive TeX Archives Network, a network of mirror servers of the central CTAN; one can find there everything about TEX, LATEXand more: http://www.ctan.org
On some keyboards, like the French keyboard, it is not possible to do “Ctrl+Shift+[” or “Ctrl+Shift+]”; so the shortcuts have been changed, see annex6.1