Don't rely on it being preserved. Many repairs require Apple to replace or reformat the hard disk, which will result in the loss of your data. Please make sure you back up your data on a regular basis to minimize your data loss. Apple and its AASPs are not responsible for any damage to or loss of any applications, data, or other information stored on your MacBook Air while performing service.
I had occasion to use customer support this week after my family gifted me with an IPad. I had difficulty with accessing after setting it up. I didn't catch the gentleman's name but I found his explanations way too fast and his tone arrogant, despite my telling him I was a senior and needed patience. I sat through a lengthy discourse on the difference between a password and a postcode, and I remained locked out. I think his telling me to hang up, sit back, relax and meditate and the password would come to me was his giving up. I give the service a zero. Once I can figure out how to reset the thing it will be going back.
Known malicious extensions: WeKnow, MacSaver, MacVX (and variants like MacVaX), MacCaptain, MacPriceCut, SaveOnMac, Mac Global Deals or MacDeals, MacSter, MacXcoupon, Shop Brain (or variants like SShoP Braaiin), PalMall, MacShop, MacSmart, News Ticker Remover, Shopper Helper Pro, Photo Zoom, Best YouTube Downloader, ArcadeYum, Extended protection, Video download helper, FlashFree or GoldenBoy.
When released in October 2010, the 13" model's screen resolution was higher than the average 1366x768 screens of similar sized laptops. However, by mid-2013, with many premium Ultrabooks having high resolution screens (1080p or greater) as standard or upgrades, the MacBook Air has been increasingly criticized for sticking with a low-resolution screen. Many in the tech community had expected Apple to release a MacBook Air with Retina Display by mid-2013, similar to the MacBook Pro Retina which came out in 2012. The October 2013 refresh of the 13" MacBook Pro Retina, with a slimmer chassis and a lower price point, was mentioned as a potential MacBook Air alternative as the battery life is not much shorter while not being considerably bulkier. Apple released an entry-level version of the 13" MacBook Pro on October 27, 2016, which was specifically targeted towards MacBook Air users.
Apple's phone-based tech support provided accurate answers in a speedy process, though I encountered an odd bug during my testing. Apple's phone support number (1-800-275-2273) isn't highly visible on the company's site, so most people will find themselves navigating to http://support.apple.com, and then clicking through a short series of prompts and filling in contact information to arrange a phone call.
Apple is about to begin charging users outside of their warranty for online chat support using a new web payment system it recently developed. Sources familiar with the project say Apple is currently expecting to launch the new paid chat support, which will also let customers schedule repairs and replacements online, as early as next week. Here’s how it works: