Does run Mac OS X from external disk will damage Win7 installed at internal disk?

Hi,
When I buy a Mac Mini Server 2011, I replace the Mac OS X Lion bootable disk with a SSD and install Win7 64, the other internal disk is also used by windows.
Now I need write some code in Mac OS using XCode, I assembling the Mac OS X Lion bootable disk with a USB disk shell and plug in Mac Mini's USB port, when I power on the machine and press the ALT key, the firmware show the Max OS disk, but I stoped.
I want to know if I boot into Mac OS, will it damage the Win7 disk? Can I apply OS patch or upgrade firmware?
Thanks in advance!

Does run Mac OS X from external disk will damage Win7 installed at internal disk?
Of course not. Why would it?

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Even if you could open Disk Utility you can't reformat a disk while you are booted from it. You will have to use the install CD. Ring the Apple Online Store at the number given at bottom left of this page and give them the serial number of your Mac. You should be able to get the Snow Leopard install disks for a nominal fee.

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You can't use Remote Disc to install an OS; you need to use an external optical drive, or target disk mode, or if you have a computer running Mac OS X Server, NetInstall.
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I'm planning to run my MacPro for 8-10 hours a day and I was wondering does running the computer for many hours during the day is potentially dangerous for Mac Pro?

No problem at all. However, under heavy usage you will find that it better to have enterprise class drives and a professional class UPS. The Mac Pro will actually have no problem with running 24/7/365.

I am running Mac OS X 10.4.11. I am installing Mac OS X Snow Leopard 10.6.3. Will it affect anything on my profile right now?

Can anyone tell me if I were to install Mac OS X 10.6.3, will it affect anything on my profile.

What profile? It will upgrade your system software, nothing more. Before proceeding see the following:
How to Install OS X Updates Successfully
A. Repair the Hard Drive and Permissions:
Boot from your current OS X Installer disc. After the installer loads select your language and click on the Continue button. Then select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger) and/or TechTool Pro (4.5.2 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
B. Make a Bootable Backup Using Restore Option of Disk Utility:
Open Disk Utility from the Utilities folder.
Select the destination volume from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the destination volume from the left side list and drag it to the Destination entry field.
Select the source volume from the left side list and drag it to the Source entry field.
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C. Important: Please read before installing:
If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
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Purchase the Snow Leopard Retail DVD.
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Insert OS X Installer Disc into the optical drive.
Restart the computer.
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Download and install update(s)
Use Software Update, or
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Jeff
eMac 800 nVidia. Mac OS X (10.4.3) 160 GB Internal HD. Pioneer Superdrive. 1 GB RAM.

Hi
I did name the new external completely different from the internal.
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Message was edited by: JuanCarlosZaldivar

Searching Avid Xpress on http://www.versiontracker.com/macosx/ , I find that Xpress Pro is the only version of Xpress that has been updated since Tiger's release. It says it works with 10.4 PowerPC which means it should work on any G5 that could install 10.4.6 or 10.4.7:
http://www.versiontracker.com/dyn/moreinfo/macosx/19024
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Time Machine will recover any system that is stored in its recovery disc but you need a 10.5 installer disc to recover from it and a Mac that can install 10.5 (867 Mhz G4 or newer). If your G3 Powerbook has Firewire, it may be able to backup the Powerbook if it is mounted as a Target Disk Mode hard drive to another machine putting the Powerbook into Target Mode by booting it with the T key held down:
http://docs.info.apple.com/article.html?artnum=58583
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(Want to get started on Logic 9 but don't want to put too much money into my G5 since I'd rather put any new computer money towards a new, intel machine).
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Hey sydthekyd5,
Thanks for the question. I understand that you are experiencing issues with your home Wi-Fi network. Check out the following resource for relevant information regarding your symptoms:
Wi-Fi: How to troubleshoot Wi-Fi connectivity - Apple Support
http://support.apple.com/en-us/HT202222
Symptom: The network connection drops unexpectedly
- Your Mac may not not stay connected to your Wi-Fi network reliably.
- Your Mac may stop accessing the Internet during use.
Solution
Use these steps if your computer disconnects from its Wi-Fi network unexpectedly.
1. Check your range to the Wi-Fi router and reduce the effect of interference.
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Why does my mac dont recognize the external hard drive

i log the external HD, the lights on the Hd are going on (means electricity goes) but i cant see the thing inside the HD
thank you som much for the help

There's a program in your Application's Utility folder called Disk Utility. Run it and see if the program sees the drive. If so, attempt to mount it. (There's a mount option in the toolbar.) The drive might need to be repaired. (The repair button is at the bottom right of the program window.)
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Does run Mac OS X from external disk will damage Win7 installed at internal disk?

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