El Capitan was only ever available as a free download direct from Apple, if you are buying it or any 'recovery' DVD you are being ripped off. To download El Capitan, read this, How to upgrade to OS X El Capitan - Apple Support scroll down to Section 4 and click on Get El Capitan. Download Mac OS X El Capitan 10.11.1 DMG for Mac full version. Canon utility software download mac. It is the best application for the proper security and working of your device. Many other websites are postulating to provide the facility of downloading free software but the problem is the difficulty in downloading.

First off sort out the problem with the battery.

Next confirm whether your Mac is running 10.6 which is Snow Leopard or 10.9 which is Mavericks.

If it is 10.6 Snow Leopard make sure it is fully updated to 10.6.8, use the App Store for that, if it is 10.9 Mavericks make sure it is fully updated to 10.9.5. Click on the Apple top left of your screen then click on About This Mac to see info about your Mac.

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Whichever OS you are actually running open Disk Utility from the Utilities folder in your Applications folder and run Verify/ First Aid on your disk to check for errors. If errors are found then you will need to boot to your Recovery Drive, this will have been installed along with Mavericks, About macOS Recovery - Apple Support then use Disk Utility from there. If you are on Snow Leopard you will need the original install DVD so you can boot from it and open Disk Utility from there. El Capitan was only ever available as a free download direct from Apple, if you are buying it or any 'recovery' DVD you are being ripped off.

To download El Capitan, read this, How to upgrade to OS X El Capitan - Apple Support scroll down to Section 4 and click on Get El Capitan.

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Some other things that might be of use to you are to reset the NVRAM, reset the SMC, boot to Safe Mode. You could also try installing El Capitan in Safe Mode.