Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Self explanatory. 21.5 inch iMac, late 2009.

share|improve this question
up vote 3 down vote accepted

Vinegar and water, half and half, gentle circular motions with a clean cotton t-shirt. Make sure not to use too much liquid as it can drip.

share|improve this answer
plain white vinegar, if possible. red wine vinegar should be saved for your salad. :) – quack quixote Mar 30 '10 at 11:46

I typically clean any LCD displays I have with a slightly damp microfiber cloth. You'll definitely want to use something soft--I've seen quotes online that say nothing rougher than a t-shirt.

I have used Windex before as well, but I noticed slight discoloration on my monitor for several minutes (after which the effect faded).

share|improve this answer
most Windex formulas contain ammonia -- which is not good for your screen. – deleted Mar 29 '10 at 1:34


I clean my LCD-screens with a very diluted water/dishwasher-liquid solutions and a soft cloth I got with my glasses.

I have been doing this for over 10 years and never had any problems.

share|improve this answer
I trust you're referring to the stuff for washing dishes in the sink, not the nasty stuff for automatic dishwashers? – JRobert Mar 29 '10 at 14:53
@JRobert - You are quite correct – Nifle Mar 29 '10 at 16:27

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.