I love my iMac.
SO easy.
For you, call a real Computer Tech to come to your house.
If you don't know what you are doing... it may get worse.
You probably have to re-install and re-load everything. The OS (operating system).
I would REALLY (if you do not have one already), get an EXTERNAL hard-drive.... and BACK-UP everything on your computer. Otherwise, you will lost everything.
Or, you could be having these problems.. because your current Hard-drive or Mother-Board is dying. Thus... the issues you are having now. That is what happens, when a computer hard-drive or Mother-board is dying.
Or, you need to get the 'updates' and patches for your computer and all the software.... including for your printer etc.
Time for a new computer.
BACK-UP everything on your computer. NOW. Or you will lose everything.
MAC computers... are awesome!
I hated my PC. My iMac is SO much easier.
Gateway and Vista, sucks.
Get a MAC.
Do NOT turn off your computer and back-up everything. Pronto.
I strongly suggest, your computer is on its last leg. Dying.
all the best,
Susan