My wife told my kid to clean her IMac keyboard with windex and a cloth. After that, the keyboard didn't work. Specifically, the ZXCVBNM,./ keys didn't work, but the other keys seem to be ok. Model Name: iMac Model Identifier: iMac12,1 Processor Name: Intel Core i5 Processor Speed: 2.5 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 4 GB Boot ROM Version: IM121.0047.B1F SMC Version (system): 1.71f22 Serial Number (system): C02FTAJJDHJF Hardware UUID: 6108E235-3DC9-567B-836B-11AC0DFF0945 ****** How do I troubleshoot the problem? The "cleaning" took place a week ago, and the effects of cleaning (noted above) continue today. How to fix the keyboard if it can be fixed? What to do (how and what to buy) if the keyboard cannot be repaired? The easiest thing, I suppose, would be to buy an exact keyboard replacement, but that might not be the best thing to do.