I have a Lenovo laptop running Win7 SP1 with Firefox 25.0.1. About a month ago I started having problem coming out of sleep mode. The computer would hang and never return and I'd have to cyclel power. Also Firefox suddently began crashing (especially coming out of sleep mode) and Microsoft Word hangs after entering a handful of characters. As this behavior all began at once I suspect I've contracted a virus.
Thanks for any help you can provide.