MacBook Air components are officially non-user-replaceable, though third-parties do sell upgrade kits for the SSDs. The flash memory and battery are enclosed within the casing, with RAM soldered onto the motherboard. The flash memory, difficult to access, has a 128 MB cache and a mSATA connection (updated to a proprietary PCIe interface) to the motherboard.
Nov 2 Long loading screens & lag, why? I have been having long loading screens and lag since I downloaded the classic wow demo. Is this normal? I don't have lag since I got this new iMac. Should I just uninstall the demo or is there something else I can do? relatively easy since I am a not that smart when it comes to technical things on a computer. please help... :(Gitty0 Nov 2
If you are the one providing the technical assistance, open Messages, select the name of the person you plan to help — or send a new message to start the conversation — and click the Details button in the upper-right corner of the window. Click the Screen Share icon, which looks like two overlapping rectangles, and select “Ask to share screen.” (If you’re the one needing the help, you can also reach out via a Messages buddy and use the “Invite to Share My Screen” option.)
The person on the other end of the sharing request needs to accept your offer. A box pops up to ask that person to let you observe or take command of the screen. Once the person chooses “Control my screen” and clicks Accept, you should be able to take over that Mac with your own cursor and keyboard to provide remote technical support; the app also opens up an audio call between you and the other person so you can talk while you help. When you are finished, the recipient can close the session.
When I tweeted — from my secret social-media account used to hide my identity as a reporter — for help about Spectre and Meltdown, Apple responded a short 10 minutes later. The company also included the correct information (update macOS on your Mac, and you're OK), along with a link to documentation on Apple's site that explained the situation in greater detail.
Much like Apple handles support calls over the phone, soon only customers within their warranty period will be able to access online chat support through getsupport.apple.com for free. For others, Apple will charge what it refers to as a “pay per incident” fee or require the purchase of an extended warranty through AppleCare. Previously all online support chat features were available for free to users worldwide. Some users might have noticed back in August when Apple revamped its support sites that it started listing a $19.99 per incident fee for chat support. However, up until now AppleCare hasn’t actually been charging users to access the feature.