What does control r do?

My MacBook air won't reboot...just has blue screen with apple and circle.  Someone said control R which I did then it offered me options.  I tried the disk option but it didn't help.  I am afraid to try the other options as I have all of my work on this computer and am afraid of loosing it. 

Hello bethanyfromlithia,
Thanks for using Apple Support Communities.
To troubleshoot this issue where you're seeing a gray screen with the Apple logo and spinning gear please follow the steps in the article below.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Take care,
Alex H.

Similar Messages

  • What does Grid Control agent upload?

    We recently shut down the agent for Grid Control and yet I still see data on the "top activity" page, both current and historical. If the agent isn't uploading this data what is? And what does the agent upload if not this data?

    If my memory serves me correctly, the agent uploads monitoring metrics for long term. When you are viewing the target it connects directly to the database, hence why grid has to have connect descriptors for the databases beyond just the agent using them.

  • What does the message "Another program has control of HP imaging device mean"?  I get this when I am trying to scan.

    What does the message "another program ha control of HP imaging mean when I am trying to scan something. How do i correct it?

    You may need to ask HP. I had the same issue with a networked (via ethernet) home HP multi-function. Sometimes the only way to get it to scan was to completely disconnect it from the network and connect it to only one Mac with a USB cable. Even that did not alwatys work.
    Eventually, Apple started pushing out HP printer updates via Software Update. One of those finally made that error message to go away.
    So run Software Update and see it there are new drivers that Apple made avaialble.

  • What does remote control volume control do?

    What does the volume control on the remote do? 
    About 6 months ago I successfully changed my remote to operate the TV.  Today I reset the remote (by pressing #* and on/off button) so that it doesn't affect the TV.  In this mode, should the BTVision remote control do anything (it doesn't seem to!)?  I thought that it would increase/decrease the output of the BTVision box so that I would have two methods of controlling the volume - one by using the BTVision remote, and the other by using the TV remote.
    Solved!
    Go to Solution.

    Nope -- either programme it to operate the TV sound as before or leave it to do nothing. 
    Some devices do work the way you would like but not the Vision box.

  • In relation to Wireless Speakers, what does 'Connected Music Server' mean?

    Hello All,
    Need some advise. I am looking at purchasing a Wireless speaker. I currently have a MacBook Pro 10.8 which has my music stored in iTunes. My phone is an Android 4.2.2 device.
    Therefore, I need to buy a wireless speaker that supports AirPlay (aka stream music from my MacBook Pro) and also has an app that I can install on my Android device which can threby access the iTunes playlist so that I can use my phone as the remote control.
    Based on the above requirements, I narrowed down my chocie to the Denon Cocoon Home (whose app is also Deno Cocoon) and the Pioneer A4 XW-SMA4-K (whose app is Pioneer ControlApp)
    Question 1:
    The Denon App says this:
    - When connected to your home Wi-Fi network you can further expand your choice of music by using the Music Server to browse and play all the music that is stored on your PC, Mac or Network Attached Storage (NAS) drive.
    - DRM protected music is NOT supported by the Denon Cocoon app (or any 3rd party music app)
    My question what does one mean by a 'connected music server?' If an AirPlay speaker receives iTunes music, does it automatically become a 'connected music server?' Technically, is music in my iTunes app (some purchased from iTunes store, some imported) considered DRM protected music? Can ithe app read the iTunes music given the above contraint?
    Question 2:
    The Pioneer App has a lot of complicated lingo that says:
    Network Audio Player
    - Browse and select music files on your connected music server
    AV Receiver
    - Browse and select music files on your connected music server
    Network CD Receiver System
    - Browse and select music files on your connected music server
    Wireless Speaker
    - Volume up/down
    - Select Internet Radio Stations
    - PUSH PLAYER
    It uses one app for multiple devices and in the app description has a breakdown for what the app supports for every device. Now the 'connected music server' is not mentioned in 'Wireless Speaker' but the same is mentioned in 'Network Audio Player' so what does that mean?
    I am more veered towards the Pioneer speaker as it costs $100 less and has better reviews but I will go with the one that will aloow me to use my Android phone as a remote control to access the music that the speaker is streaming from my MacBook pro.

    CSS SSL module sending a Close_Notify.
    Try these links;
    http://www.cisco.com/warp/public/117/basic_css_lb_config.html
    http://www.cisco.com/en/US/products/hw/contnetw/ps792/products_configuration_guide_chapter09186a008057a127.html

  • I was playing with my ipad settings (it's an older model) and noted in the advanced settings of Safari there was a place to view website databases.  When I clicked on this I saw websites.  How do these get there and what does the space amount mean?

    I was playing with my ipad settings and noted in he advanced settings of Safari there was a place to view "website databases".  When I selected this I saw a multitude of websites.
    Can anyone tell me how these get there?  Can a website be posted even if it was never went to?  What does the space amount mean?  For example, 1.5 kb...is this quite a bit?  Would it indicate someone has gone to a site multiple times?
    I share my ipad with my teenage daughter and I'm trying to find out if she's lying to me.  Obviously she's swearing that she has "no idea" how these got there and I'm trying to keep her safe (she's only 14).
    Thanks everyone.
    Concerned Mom

    Think of your PC and the 'temporary internet folder' where it keeps cached copies of web pages or elements off a web page for 'quicker display the next time you visit'. That's pretty much what that folder is. 1.5K is tiny. Probably just a basic page with some text on it. (you might be confusing 1.5K with 1.5 megabyte....megabyte is large...it's roughly 1000 kilobytes, so the 1.5K is a tiny file)
    As far as I know, the only way info gets into that folder is if the browser has been to that site.
    if you have a concern there are browsers out there, McGruff is one i've seen recommended, that allow some degree of parental control and supervision. That or you could passcode lock the iPad or enable the restrictions to turn off some parts of the device to have some control.

  • Ipad air 2 there's no silent mode like the other iPads ?? the button that does it does not exist on the iPad air 2 what does replace it??

    ipad air 2 there's no silent mode like the other iPads ?? the button that does it does not exist on the iPad air 2 what does replace it??

    hi the older button could be set to either "force portrait mode" or "silent mode". now you can do both in the iOS control center (swipe from the bottom of the screen), so the need for a button isn't needed anymore.

  • HT4259 I have been trying for hours to extend my Extreme Gen 5 network with an Express Gen 2.  But no matter what I do or try, it doesn't work.  What does happen is my internet gets block somehow when the Express looks like it's set up and 'green' - no in

    I have been trying for hours to extend my Extreme Gen 5 network with an Express Gen 2.  But no matter what I do or try, it doesn't work.  What does happen is my internet gets blocked somehow when the Express is online and looks like it's set up perfect and 'green' - but no internet connection for anything even though the Extreme is green and the modem is good.  Once I disconnect the Express, everything is good again.
    I've tried LAN, WAN, though a switch, direct connect, Extreme set to Extend the network, the Express set to be an extension.  Most of the time I get an error trying to update the Express.  But when it seems to be set up perfect, the entire house can't get to the internet.  Just when it looks right, it is so wrong.
    If anyone can give me exact steps (e.g., "...from the Base Station menu, select the Restore Default Setting option" vice "...just restore the defaults..."), I would greatly appreciate it.  I'm left to the conclusion that the Express is faulty.  I've been using Airport Utility 6.2 from Mountain Lion on one computer and Airport Utility 5.6.1 from Snow Leopard on another computer (the latter give more control while the former just want you to 'forget' the Express).

    I finally got it working.  I was trying to set it up ethernet.  My biggest mistake was when the new Express came on, I did not select 'Continue' - I went straight to manual thinking that I would get the most setup options in manual mode.  So everything I initially tried always resulted in 'wireless'.  Even when I would update or restore default settings, the Express would not completely restart. Or sometimes I would get an error. So most of the time I had to unplug it.  So when it came back up, none of my changes were retained. But there were a lot of times when everything was green and appeared to be fine. But anytime the ethernet cable was plugged in, no more internet.
    So here's the weird part.  When I finally tried 'continue' (vice manual), I would get 4 options.  One would be 'ethernet' extended.  So I would select it, it gave me green lights, all looked good, and still the same problem.  This is when I got frustrated.  I thought I had exhausted all possible combinations.
    But somehow when trying continue again after another restore, I only got 3 options.  One was the same ethernet extended option (can't remember what the missing 4th one was).  And this time it worked - it gave me the big green circle with the checkmark saying it was successful.  I don't know what I did different, but I know now that it won't work if 4 options come up to choose from.  It will work if only 3 options come up.  And success if only verified by the big checkmark.  Had anyone anywhere said the checkmark declaring success is validation, then maybe I wouldn't have gone down so many rabbit holes thinking it should have been successful.
    As for which Airport Utility I prefer, 6.2 looks nice, but it would just ignore the Express and would want me to 'forget' it and would not let me edit it.  Airport Utility 5.6.1 was the one that I ended up using the most and finally had success with.  It still strikes me as odd that there is no manually way to pick ethernet, it can only be choosen following a 'restore defaults', and only from the 3-option list (the 4-option list had the same ethernet choice, but it no worky).
    Thanks for the response.  I really do appreciate it.
    Aiport Extreme Gen5 - internet access and router
    Airport Express Gen2 - connected via ethernet, extending my wireless
    - configured while connect directly to the Extreme, but now on a switch (16-port hub)
    Using Airport 5.6.1
    1) Restore Defaults from Base Station menu
    2) Following restart, Select Continue
    3) Of the 3 option presented, select 'ethernet.... extend network...'
      - if 4 options are present, may not work
    4) Wait for the green circle with the big white checkmark.
    5) Connected Express to the switch where a cable went to other end of house - works.
    Dead-zone went from 2mbps to 24mbps.
    I probably spent 4 hours chasing my tail in anger.  The correct way took about 5 minutes total.
    Thanks again.

  • I am reinstalling Itunes on PC win 7 and have the message: "Apple mobile device failed to start verify that you have sufficient privileges to start system services" what does this mean and how do I check? I am already logged on as administrator.

    I am re-installing itunes on a PC Win 7 and have the message: "apple mobile device failed to start verify that you have sufficient privilegesto start system services" what does this mean? how do I check and rectify? I am already logged onto the PC as administrator

    I am having this same problem. I took Kappy advice on restarting the Apple Mobile Device Service, however that did not work. I got this message in a pop up window that came up immediately.
    Windows could not start the Apple Mobil Device Service on local computer.
    Error 1053  The service did not respond to the start or control request in a timely fashion.
    I have already uninstalled itunes, all the related programs and I cannot reinstall, this Apple Mobil Device message stops the install.
    Can anyone please help?

  • I cant download itunes on my computer because it says " service 'apple mobile device' failed to start. verify that you have sufficient privileges to start system services. what does this mean? how do you verify this?

    I cant download itunes on my computer because it says " service 'apple mobile device' failed to start. verify that you have sufficient privileges to start system services. what does this mean? how do you verify this?

    I am having this same problem. I took Kappy advice on restarting the Apple Mobile Device Service, however that did not work. I got this message in a pop up window that came up immediately.
    Windows could not start the Apple Mobil Device Service on local computer.
    Error 1053  The service did not respond to the start or control request in a timely fashion.
    I have already uninstalled itunes, all the related programs and I cannot reinstall, this Apple Mobil Device message stops the install.
    Can anyone please help?

  • What does it take to complete a contract?

    Hello Gurus,
    I would like you to use a Sales Contract. Change the completion rule of the according Item Category to 'Not relevant for completion'. When you reference a sales order to this contract item, the contract status will stay open. What does it take to complete the contract in this case??
    Thank you!

    HI
    In copy control of Item Category maintain Create document flow records in Update document flow so that when ever the material is referred to subsequent document the status of doc will be completed OR enter the reason of rejection in line item.
    Regards
    Santosh.A.R

  • What is the provisioning feature in the settings under, general profile? It says something about "provisioning". What does that mean and what does it do?? (It's on my 5th generation iPod touch, black, iOS 6.1.3

    What is the provisioning feature in the settings under, general>profile? It says something about "provisioning". What does that mean and what does it do?? (It's on my 5th generation iPod touch, black, iOS 6.1.3

    A profile is used on iOS device to add specific settings and similar things to an iOS device.  Tryically, they are added when the iOS devices is controlled by a company or school.
    However, some apps install a profile. If your iPod is not controlled by a company or school then it seems an app added the profile. You can good the title if the profile and see if that gives any info.

  • What does service "Apple Mobile Device" failed to start mean?

    What does service "Apple Mobile Device" failed to start mean? I have been trying to download the new version and a message says please verify that you have sufficient prvileges to start system.

    Hey Michael13504,
    First, I would try the steps in here:
    How to restart the Apple Mobile Device Service (AMDS) on Windows
    http://support.apple.com/kb/TS1567
    If you end up having to remove and reinstall iTunes, make sure you follow all of the steps in this link:
    Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8
    http://support.apple.com/kb/HT1923
    This section contains information that might help your situation, as the order and manner which you uninstall has an effect on the outcome:
    Use the Control Panel to uninstall iTunes and related software components in the following order and then restart your computer:
    iTunes
    Apple Software Update
    Apple Mobile Device Support
    Bonjour
    Apple Application Support (iTunes 9 or later)
    Important: Uninstalling these components in a different order, or only uninstalling some of these components may have unintended affects.
    Let us know if following that article and uninstalling those components in that order helped the situation.
    Welcome to Apple Support Communities!
    All the best,
    Delgadoh

  • New Check box in Preferences - what does it do?

    In Preferences, under Advanced, there is a new button under "Look for remote speakers..." This button is "Allow iTunes control from Remote Speakers" - what does this do? I can find no documentation. Sounds intriguing.
    Thanks,
    Bruce

    I'll test this in just a minute, but it sounds like it means you can use the controls on a speaker being controlled via AirTunes to manipulate iTunes settings (eg. equalizer, volume, or other settings) I'll see what I can figure out for sure.
    EDIT: I just saw the check box above the one you mentioned, that said "Disable iTunes volume control from...", and now I think what the one you are talking about does is allow the speakers to skip songs, fast forward, rewind, or pause. Again, about to test.

  • Perfect? No. But hey, thanks for what does wo

    I think I've been pretty even minded regarding Creative's progress with their Vista support for my Audigy 2 ZS Platinum Pro. Yeah, lots of stuff doesn't work and some things that worked with prior beta driver versions or even using XP drivers no longer do. Weird needing the earlier non-functional MediaSource software installed for the new one to encode mp3's (unless buying the new codec, which I did to avoid needing to install that old stuff). Limited Soundfont support and only in MediaSource Player. No more AdvancedEQ. No more Dolby Decoding (well, PowerDVD 7 does it). However, I have never had audio not working in Vista. And I have never had less than exceptional sound quality. Now, if I just turn up the bass and treble in Vista's AudioControl it still sounds great even without Advanced EQ. (I would like that back though. No real fine tuning the hardware, just software player eq's this way.)?I've read of lots of problems folks have had, but my headphone jack on the breakout box works. The AudioConsole successfully switches the audio between my headphone being plugged in or my 2. speakers, etc. The CMSS does give me proper seperation with my headphones, speakers. So the basic stuff with slight extra (jack detect, CMSS) work. No audio glitches. And the new driver does fix any problems with accessing the Vista AudioControl, whereas with older beta's the control would only open once and wouldn't remember settings. It now works fine. I only adjust the configuration in Creative AudioConsole though. The documentation said not to use the Vista Speaker setup so I've never opened that. I really have no complaints except to please give us back our advanced features that really make the card's purchase worth it. And do something about MediaSource not knowing we already paid for mp3 encoding when we spent $300 for our retail card. It shouldn't need to have the unoperable cd software installed to know this. So, thanks for not leaving us barren of quality sound like your M-Audio competitors have. Their policy is we have nothing for you and please don't ask us about it. But feel free to keep buying our cards!?Creative could have kept its development entirely in house and not released anything until, or after Vista is in retail outlets and installed on OEM computers in stores. They did not. They could have deleated any forum post references to Vista and simply announced that support for some cards may come when Vista is released or some time thereafter. They did not. They have shared the information regarding the new Vista API's and have related what they will be doing to get things adjusted so they work for most features most people still want from soundcards. Pretty good communication, in my view. As well as pretty darned good support during the beta Vista period. I just hope more is coming than what is provided now. I can switch to my onboard and get similar at the moment. But, thanks for what does work!

    Are you looking for this Thread that you started...
    https://discussions.apple.com/message/25004385#25004385
    It gets Very Confusing if you continually Start New threads all the time.

Maybe you are looking for