How to create bootable USB drive with Mac OS X Yosemite 10.10 How to install Mac OS X Yosemite 10.10 on PC from USB for Intel/AMD with download links.

OS X 10.10, aka Yosemite, sports a more modern look and bridges the gap between Apple's desktop and mobile devices. The new Continuity helps you hand off tasks from iPhone to iPad to Mac, but that feature and Yosemite's updated hardware requirements, such as Bluetooth 4.0, push you deeper into Apple's ecosystem.

Pros Beautiful but familiar design: Launch Yosemite and you'll appreciate the familiar, easy-to-navigate interface, modernized with flatter, iOS-style icons. It's the same Mac experience, only sleeker. Better notifications and search: The once disdained notification bar has become incredibly useful. The events and notifications bar slides out, like iOS 8's, with customizable, drop-down widgets, revealing the native Weather, Calendar, and Calculator apps.

Spotlight search pops out and lets you launch apps, find files and folders, and even search the Web, similarly to the popular standalone app Alfred. Continuity is amazing: Sharing photos and videos over iCloud is as easy as dragging and dropping.

Airdrop lets you transfer files directly to your iPhone or iPad. If you own an iOS device that can upgrade to iOS 8, Handoff (aka Continuity) is a must-have feature. Make calls on your Mac, send SMSs to non-iPhone users, and finish documents and emails begun on your iPad from your desktop. Fluid and fast: In our tests, the overall OS experience was fast and functionally stable, with most apps launching quickly and acting responsively. Additionally, Spotlight makes search much more intuitive and effective.

Cons App incompatibility: Certain apps don't work with Yosemite, including enterprise applications like Cisco VPN, Parallels, and VMWare Fusion, which will not operate properly until updated patches are released. If you rely on your machine for work, before you update your OS, check with your IT department about whether critical software is compatible with Yosemite. Steep hardware requirements: To get the most out of Continuity, your Mac must be running fairly new hardware, the most important being Bluetooth 4.0 for the coveted Handoff feature to work. IOS 8-compatible devices are also needed for mobile-to-desktop connectivity. Yosemite's new font, Helvetica Neue, gives your desktop a cool new look but is hard to read on smaller screens or non-Retina displays -- watch out, Macbook Air users. Buggy: Apple's latest OS is still buggy almost a month after its official release.

The most widespread issue is reconnecting Wi-Fi after your machine is put to sleep. Also, Handoff can be hit or miss.

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We were able to get our devices up and talking, but others weren't so lucky. Apple-phile: To enjoy Yosemite to the fullest, you must own other Apple products. Although we loved the ability to take our work from mobile to desktop, we wish that Apple would play more nicely with competitors' software.

Bottom Line With Yosemite, Apple made the Mac OS a bit slimmer and faster while keeping the familiar feel that users love. Overall, OS 10.10 is a stable and responsive operating system -- when it works. If you already own iOS 8-ready devices and/or the latest Mac, upgrading is a no-brainer. Folks with older systems or those without iOS devices will have to weigh the benefits of upgrading. Of course, the upgrade is free, so it's not a big gamble.

I already have 10.10.2 installed and running on my MacBook Pro (2008 4,1). However, I would like to reinstall/refresh Yosemite (--but not a 'clean' reinstall that wipes everything). Whether from the App Store or the Recovery Partition, the reinstall/refresh process never completes, even leaving computer alone for 24+ hours. Is there a way to download a Yosemite ISO image?

(My disk and permissions are okay, and there are no diagnostic problems. It's just that I have installed/uninstalled so much other stuff that, at this point, I would like to refresh all system files/apps.).

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