I am trying to reinstall Windows on my macbook pro. I downloaded the support files and Windows 7 iso file to a USB drive. However, when I try to run the setup.exe program I get the message "this program cannot be run in DOS mode."

I am trying to reinstall Windows (would not launch). I removed the partition and started over. I downloaded the support files and Windows 7 iso file to a USB drive. However, when I try to run the setup.exe program I get the message "this program cannot be run in DOS mode." I was successful before, what am I doing wrong this time?

Try a restart.
If that doesn't fix the problem, shut down the computer and then power it back up. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application unistaller. For each disable/delete, you will need to restart if you don't do them all at once.
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General information.
Isolating issues in Mac OS X
Troubleshooting Permission Issues
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Right, MacBook Pro 17" early 2011(Built March) and my new OCZ sata III 6G not working, when is Apple going to admit there is a problem with the Intel's 6 Series Chipset. In System Information it says "Link Speed: 6 Gigabit" which is sata III.

My MacBook Pro 17" early 2011(built March) and my new OCZ sata III 6G are not working together, when is Apple going to admit there is a problem with the Intel's 6 Series Chipset. In System Information it says "Link Speed: 6 Gigabit" which is sata III and in my MacBook Pro it does not work.
Now MacBook Pro 17" early 2011 built May onward do not have this problem it was fixed in the Intel's 6 Series Chipset. (So there is a problem). Cam I have my MacBook Pro fixed please.

After biting the bullet and ordering more RAM, my computer now is working a ton better. So that must have been the main issue. With 8 GB RAM, I can now even run Parallels fluidly (better than my work PC!) where before simple things like logging in to my MBP after reboot could take forever.
The place I went to had several other people getting RAM upgrades at the same time as me, so between this and other comments I've seen in discussions here and elsewhere on the Internets, I take it to mean that either Apple should bump up the base RAM on its new machines, and/or stop charging so much for additional RAM.
I refused to believe a Pro machine bought with Lion installed would come with too little RAM for light to medium usage, but it was apparently the case. I'll mark this as a correct answer and hope some other poor soul will come across this thread and be helped by it.

HT1725 I downloaded the book Sycamore Row last week and when I try to open it on my iPad , i get a message that says: Cannot open "sycamore Row' it is formatted incorrectly, or it is not a format that Ibooks can open. what's up?

I downloaded the Book Sycamore Row last week on my ipad and when I tried to open it, I got the message that it was formatted incorrectly, or is not a format that ibooks can open? if this is true, how do I get aREFUND?

You can try deleting the book and reinstall it. There is no reason why the book would be formatted incorrectly - assuming that you purchased this book from the iBooks Store .... And you are talking about the John Grisham novel correct?
Did you try just closing the iBooks app, restart the iPad and then try again? If you don't know how, this explains how to close an app.
iOS: Force an app to close - Support - Apple

When i try to send email from my ipad i get the message The recipient "£)()&&£)" was rejected by the server. This has only just started to happen and I don't know why. Please help. I have tried lots of things now and cannot solve it.

When i try to send email from my ipad i get the message The recipient "£)()&&£)" was rejected by the server. This has only just started to happen and I don't know why. Please can someone help. I have tried lots of things now and cannot solve it.

"Your email account" means to tap on the name of your email account. Whatever it is listed as in the settings.
In my mail settings, one of my email accounts is a Comcast account. I tap on the Comcast name and it brings up this window.
Then I tap on the arrow under the Outgoing mail server smtp setting to get to the next window.
In the resulting window, I then tap on the arrow next to the smtp server under the Primary Server setting.
That brings up this window in which I check to make sure that my user name and password have been entered correctly. If those items are missing, enter them in the appropriate fields and then tap done.

When I try to sync my ipad using itunes I get the following message. This iPad cannot be synced. You do not have enough access privileges for this operation. Any ideas how this can be resolved?

When I try to sync my ipad using itunes I get the following message. This iPad cannot be synced. You do not have enough access privileges for this operation. Any ideas how this can be resolved?

See if the user tip helps: https://discussions.apple.com/docs/DOC-6562

I'm trying to sync my iPhone4s, but everytime iTunes tries to sync, I get a message "This iPhone cannot sync because the sync session failed to start." I've tried restoring my phone, and all my software is up to date. How do I fix it?!

I'm trying to sync my iPhone4s, but everytime iTunes tries to sync, I get a message "This iPhone cannot sync because the sync session failed to start." I've tried restoring my phone, and all my software is up to date. It won't sync any of my songs/apps back to my phone. Somebody please help!

Try to connect in recovery mode, explained in this article:
iOS: Unable to update or restore
Before that, back up your device, explained here:
iOS: Back up and restore your iOS device with iCloud or iTunes
How to back up your data and set up as a new device
You can check your warranty status here:
https://selfsolve.apple.com/agreementWarrantyDynamic.do

When I try to eject my ipod after sync I get the following message:"The iPod cannot be restored because it contains files that are in use by another application.". I tried to restore but it doesn't work and I get the same message

When I try to eject my ipod after sync I get the following message:The iPod cannot be restored because it contains files that are in use by another application.". I tried to restore but it doesn't work and I get the same message

Go to your computer's System Tray and try ejecting. If you can't eject, there is an application that is trying to access your iPod.
Go to http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx and download ProcessExplorer.
Go to http://support.microsoft.com/kb/555665 and follow the instructions under Resolution.
Note that this is a good, general process any time you can't access any file.
In my case an update to RealPlayer installed a program called RecordingManager that was accessing my iPod.

When I try to install itunes 10.5.2, I get the following error message "The installer has insufficient privileges to modify this file c\progamfiles\itunes\itunes.exe and won't install. help

When I try to install itunes 10.5.2, I get the following error message "The installer has insufficient privileges to modify this file c\progamfiles\itunes\itunes.exe and won't install. help

Okay ... so it's not one of the cases of bodged up ACLs on the Apple folder in Common Files. (That's been underlying a few of the recalcitrant E7W5s.
Just in case, let's try the fixit from the following document:
Fix problems with programs that can't be installed or uninstalled

When I try to print pictures from Iphoto 11 I get a message saying no themes are installed and I cannot print. This never happened on previous versions of iPhoto.

When I try to print photos in Iphoto 11 I get a message saying there are no themes installed and it will not let me print. This never happened in previous Iphoto versions and there is no link to get themes. How can I get these themes?

Reinstall.
To re-install iPhoto
1. Put the iPhoto.app in the trash (Drag it from your Applications Folder to the trash)
2a: On 10.5: Go to HD/Library/Receipts and remove any pkg file there with iPhoto in the name.
2b: On 10.6: Those receipts may be found as follows: In the Finder use the Go menu and select Go To Folder. In the resulting window type
/var/db/receipts/
2c: on 10.7 they're at
/private/var/db/receipts
A Finder Window will open at that location and you can remove the iPhoto pkg files.
3. Re-install.
If you purchased an iLife Disk, then iPhoto is on it.
If iPhoto was installed on your Mac when you go it then it’s on the System Restore disks that came with your Mac. Insert the first one and opt to ‘Install Bundled Applications Only.
If you purchased it on the App Store or have a Recent Mac you can find it in your Purchases List.

When I connect my Iphone 5 to sync with my Itunes on my PC I get a message- This Iphone cannot be used because required software is not installed. Run Itunes installer to remove itunes then install itunes again.

When I connect my Iphone 5 to sync with my Itunes on my PC I get a message- This Iphone cannot be used because required software is not installed. Run Itunes installer to remove itunes then install itunes again.

After uninstalling and reinstalling Itunes- issue was fixed. Thanks!

When I try to enter a new calendar entry I get the following message: "This calendar was created by mail, you can't add events to a mail calendar" what does it mean? I never had this message before.

When I try to enter a new calendar entry I get the following message: "This calendar was created by mail, you can't add events to a mail calendar" what does it mean? I never had this message before.

Check which calendar you are trying it put this event on, then put it on the correct one.

When i tried to reinstall my lion to macbook pro 15'' and connect it to the net it says no installing information for this machine? what's that means??

when i tried to reinstall my lion to macbook pro 15'' and connect it to the net it says no installing information for this machine? what's that means??

The internal drive has failed.
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional — ask if you need guidance.
If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
Keeping your confidential data secure during hardware repair
*An SSD doesn't need to be zeroed.

I'm trying to reinstall Mavericks on used Macbook Pro. When I log in to my Apple ID, it says it was not the same ID used to purchase Mountain Lion. I need to change user/admin as a lot of the folders and apps are in Chinese!

I'm trying to reinstall Mavericks on used Macbook Pro. When I log in to my Apple ID, it says it was not the same ID used to purchase Mountain Lion. I need to change user/admin as a lot of the folders and apps are in Chinese!

The first thing you should do with a second-hand computer is to erase the internal drive and install a clean copy of OS X. How you do that depends on the model. Look it up on this page to see what version was originally installed.
If the machine shipped with OS X 10.4 or 10.5, you need a boxed and shrink-wrapped retail Snow Leopard (OS X 10.6) installation disc, which you can get from the Apple Store or a reputable reseller — not from eBay or anything of the kind. If the machine has less than 1 GB of memory, you'll need to add more in order to install 10.6. I suggest you install as much memory as it can take, according to the technical specifications.
If the machine shipped with OS X 10.6, you need the installation media that came with it: gray installation discs, or a USB flash drive for some MacBook Air models. If you don't have the media, order replacements from Apple. A retail disc, or the gray discs from another model, will not work.
To boot from an optical disc or a flash drive, insert it, then reboot and hold down the C key at the startup chime. Release the key when you see the gray Apple logo on the screen.
If the machine shipped with OS X 10.7 or later, you don't need media. It should boot into Internet Recovery mode when you hold down the key combination option-command-R at the startup chime. Release the keys when you see a spinning globe.
Once booted from the disc or in Internet Recovery, launch Disk Utility and select the icon of the internal drive — not any of the volume icons nested beneath it. In the Partition tab, select the default options: a GUID partition table with one data volume in Mac OS Extended (Journaled) format. This operation will permanently remove all existing data on the drive, which is what you should do.
After partitioning, quit Disk Utility and run the OS X Installer. When the installation is done, the system will automatically reboot into the Setup Assistant, which will prompt you to transfer the data from another Mac, its backups, or from a Windows computer. If you have any data to transfer, this is usually the best time to do it.
You should then run Software Update and install all available system updates from Apple. If you want to upgrade to a major version of OS X newer than 10.6, buy it from the Mac App Store. Note that you can't keep an upgraded version that was installed by the previous owner. He or she can't legally transfer it to you, and without the Apple ID you won't be able to update it in Software Update or reinstall, if that becomes necessary. The same goes for any App Store products that the previous owner installed — you have to repurchase them.
If the previous owner "accepted" the bundled iLife applications (iPhoto, iMovie, and Garage Band) in the App Store so that he or she could update them, then they're linked to that Apple ID and you won't be able to download them without buying them. Reportedly, Apple customer service has sometimes issued redemption codes for these apps to second owners who asked.
If the previous owner didn't deauthorize the computer in the iTunes Store under his Apple ID, you wont be able toauthorize it under your ID. In that case, contact iTunes Support.

TS4020 I live in a house with multiple iCloud users. When they try to turn on "Find my computer" they get the message that they will have to disable my "find my computer" setting in order to enable theirs. How can they all be enabled at the same time?

I live in a house with multiple iCloud users. When they try to turn on "Find my computer" they get the message that they will have to disable my "find my computer" setting in order to enable theirs. How can they all be enabled at the same time?

Try this support document for information on how to contact Apple and account security. Apple ID: Contacting Apple for help with Apple ID account security

TS4003 everything else works on my iPhone in iCloud but when I try to connect to iCloud on safari I get the page ICloud set up iCloud on this device etc. What's up?

everything else works on my iPhone in iCloud but when I try to connect to iCloud on safari I get the page ICloud set up iCloud on this device etc. What's up?

You cannot connect to iCloud.com from an iOS device, you can only connect from a computer. You can access any of the data in your iCloud account from the appropriate apps on your device (mail, contacts, calendars etc)

HT4623 When I try to install iOS 6.1.1 I get the message that it failed.

When I try to install iOS 6.1.1 I get the message that it failed because I am no longer connected to the internet. NOT TRUE, Safari and mail are happily connected to the internet and working fine. Any clue?

You could try reseting. MAKE SURE YOU HAVE A VALID BACKUP AND KNOW HOW TO RESTORE IT BEFORE YOU TRY THIS
Go to settings-general-reset-erase all content and settings. This should be your last resort, it'll erase your data...

I am trying to reinstall Windows on my macbook pro. I downloaded the support files and Windows 7 iso file to a USB drive. However, when I try to run the setup.exe program I get the message "this program cannot be run in DOS mode."

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