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Hi Techp,<br />
<br />
i'd try doing a fresh install if you can, what kind of mac do you have? Also what specs?
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Hi Techp,

i'd try doing a fresh install if you can, what kind of mac do you have? Also what specs?

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The user has an Apple Account ID, the user has entered the Apple ID in &quot;iCloud&quot; in System Preferences in APPLE Menu?<br />
Manage Your Apple ID &nbsp; <a href="https://appleid.apple.com" rel="ugc nofollow">https://appleid.apple.com</a><br />
I Forgot Apple ID &nbsp; &nbsp;<a href="https://iforgot.apple.com" rel="ugc nofollow">https://iforgot.apple.com</a><br />
iCloud &nbsp; &nbsp; <a href="https://www.icloud.com/" rel="ugc">https://www.icloud.com/</a>
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The user has an Apple Account ID, the user has entered the Apple ID in "iCloud" in System Preferences in APPLE Menu?
Manage Your Apple ID   https://appleid.apple.com [https://appleid.apple.com]
I Forgot Apple ID    https://iforgot.apple.com [https://iforgot.apple.com]
iCloud     https://www.icloud.com/ [https://www.icloud.com/]

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after installing yosemite on imac , wants to upgrade to el capitan , went to about this mac option , it reached to app store<br />
but it is grayed out , can click any icon
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after installing yosemite on imac , wants to upgrade to el capitan , went to about this mac option , it reached to app store
but it is grayed out , can click any icon

app store blank on mac

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.

Mac OS X

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.

Apple OS

All of Apple's hardware is produced solely by Apple Inc., who determines internal systems, designs, and prices. Apple buys certain components wholesale from third-party manufacturers. The current Mac product family uses Intel x86-64 processors. All Mac models ship with at least 1 GB RAM as standard. Current Mac computers use ATI Radeon or nVidia GeForce graphics cards and include a dual-function DVD and CD burner, called the SuperDrive. Current Apple hardware includes the iPad, iPhone, iMac, Mac Pro, Macbook, iPod and Apple TV. Discontinued hardware includes the Apple I, Apple II, and the Apple III, the Lisa, the Newton, the Quadra, Performa, Centris, Macintosh II and LC series, the Power Macintosh, iBooks and the MacBook.

Apple Hardware

Programs written for the Apple operating systems are distinguished from software created for other operating systems in that it must be approved by Apple for use on its devices, whether it is from Apple (Final Cut, iWork, Keynote, Logic Pro and GarageBand are popular titles), or is a third party application from Parallels, Nuance, Microsoft and Amazon, among many others.