How do i reformat an external hard drive for mac

i just bought a new external hard drive to back up my mac but it is not formatted for mac yet

You can do that in Disk Utility (Applications > Utilities).
With your new drive attached, choose it on the left. Choose the Partition tab. Decide if you want one or more partitions. Give each partition a name and choose Mac OS Extended (Journaled) as the format. Then click on Options and choose GUID partition scheme. Click on Apply. Your new hard drive will be erased and formatted properly - when done, it is ready for whatever you want to put on it (you do not need any software that may be on the drive currently).

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URGENT HELP: Need to reformat an external hard drive for Mac/Win!

We got a Desk Hammer external hard drive and my hubby chose to format it as Mac Only when it first initialized. We needed it to be formatted for Mac/Win usage. Now we cannot figure otu how to reinitialize and reformat it. It's been years since I messed with his Mac. Help--right now we just have a big old doorstop instead of a hard drive! BTW Desk Hammer is no help with support (I guess that's why they were on sale); their website isn't even complete!

Use the Disk Utility application found in /Applications/Utilities to format the Drive as MS-DOS File System. This will be readable by both Mac and Windows platforms.
Hope this helps! bill
1 GHz Powerbook G4 Mac OS X (10.4.8)

How do I reformat my External Hard Drive (Seagate Backup Plus).

Hello everyone. How do I reformat my External Hard Drive (Seagate Backup Plus Portable Device). I accidentally clicked to use it with Time Machine and my hard drive is of little use now. When I open my hard drive, it just shows 'backup', the same thing when I open it with Windows. Thinking of reformatting it back to be used to Mac and Windows. And not use it again with Time Machine. New to Apple, appreciate the help

Hello,
"Thinking of reformatting it back to be used to Mac and Windows. And not use it again with Time Machine"
If you want to format the External drive as universally compatible, your best bet is to format it as exFAT. Note that reformatting the drive erases all contents of the drive.
1) Open Disk Utility located in /Applications/Utilities/ (or simply type it in spotlight and the application will show up)
2) Select the external Hard drive
3) Click the 'erase' tab.
4) Under format: select exFAT
5) Click "Erase" in the lower right hand corner to reformat the drive.

How can i reformat my external hard drive without loosing any data?

how can i reformat my external hard drive without loosing any data?

Welcome to the Apple Support Communities
It's impossible to format a hard drive without losing the data. One thing you can do before formatting is to copy the files from the external drive to your internal drive, and then, format the external drive. After formatting, copy the files to the external drive again, and everything will be as before formatting it

Greeting, I want to reformat my external hard drive using Mac OS Extended (Journaled, Encrypted ) but before formatting it, I want to make sure that if I loose the hard drive or the hard drive get stolen, no one will be able to retrieve or recover the in

Greeting,
I want to reformat my external hard drive using Mac OS Extended (Journaled, Encrypted ) but before formatting it, I want to make sure that if I loose the hard drive or the hard drive get stolen, no one will be able to retrieve or recover the information on it so could you tell me what kind of encryption will be used or is there any way to recover the information?
Thanks!

I think FileVault is used to encryp internal hard drive but I wanna encrypt an external hard drive with Mac OS Extended Journaled Encrypted which is completely different!

How do i use an external hard drive for all my itunes music?

how do i use an external hard drive for all my itunes music?

Hi valleydave,
Here are two good links for you to check out:
http://support.apple.com/kb/ht1751
http://support.apple.com/kb/ht1449
The first one goes over, in-depth, what you're looking for in regards to "off site" iTunes.

How can I use my external hard drive for my iphoto instead of my mac book pro memory?

i don't know if this question has been asked before: how can I use my external hard drive for my iphoto instead of my mac book pro memory? just like itunes all my song are save on my external hard drive. make sense?

Moving the iPhoto library is safe and simple - quit iPhoto and drag the iPhoto library intact as a single entity to the external drive - depress the option key and launch iPhoto using the "select library" option to point to the new location on the external drive - fully test it and then trash the old library on the internal drive (test one more time prior to emptying the trash)
And be sure that the External drive is formatted Mac OS extended (journaled) (iPhoto does not work with drives with other formats) and that it is always available prior to launching iPhoto
And backup soon and often - having your iPhoto library on an external drive is not a backup and if you are using Time Machine you need to check and be sure that TM is backing up your external drive
LN

How do i format an external hard drive for use on both windows and mac book air?

how do i format an external hard drive for use on both windows pc and mac book air?

Use exFAT on the PC.
(71374)

How can I partition my external hard drive supporting mac OS in one partition and windows OS in another?

Hello everyone, how can I partition my external hard drive supporting mac OS in one partition and windows OS in another?

OK. Start with:
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to two (2). Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Click on the Erase tab in DU's main window. Select one of the two partitions, preferably the first one, change the Format type: to MSDOS then click on the Erase button.

How can I reformat my external hard drive from the time machine format to regular format?

Ok so when first starting out I got an external hard drive for my time machine, little did I know I would run out of space really fast and would need to buy a bigger and better hard drive. Now that I did that, I have my old hard drive that I would like to use for copying material form my laptop to my desktop. However, it is still set as my time machine and tries to back up my lap top every time I plug it in. Also, it says that about half of it is still filled with stuff. I erased everything on it. I just want to reformat it so that it is like I just bought it.

Tirrel wrote:
I had the same idea as you however when I tried going to Disk Utility and I tried to erase it an error message came up telling me that it is unable to erase.
Unable to erase, or unable to unmount?
If Time Machine is trying to back up to it, or some other process is using it, Disk Utility won't be able to unmount it. Turn Time Machine OFF; if you have the drive open via the Finder or any other app, close it or quit the app(s).
At worst, start up from your Install disc or other alternate source and erase it from there. If you're not sure how to do that, see the yellow box in #1 of Formatting, Partitioning, Verifying, and Repairing Disks.

How can I use one external hard drive for both Time Machine and iPhoto Library?

I have been using a 1 TG LaCie external hard drive for Time Machine backups. My (older) Mac has 160 GB and is almost full. I would like to move my iPhoto Library to the external hard drive, but I've heard Time Machine doesn't share one space well. Should I
1. create another partition (but will this erase what I've already saved) with Disk Utility? *I am running Snow Leopard*
2. create another volume to use for iPhoto, and if so, should the two volumes be of equal size?
3. leave it with one partition and move the iPhoto Library to the same partition with Time Machine back ups?
I know I don't need the entire 1 TG for back up of 160 GBs. Please advise the best path to take. Thank you!

You are getting incorrect information from your ASP. If you look at drive specifications the heat generated is no different for high vs low capacity drives.
I have upgraded the internal drive in my iMac 2007 with a 3TB Hitachi drive without any heat issues or other problems.
Larger hard drives have higher density platters so to access any given amount data the drives travel a shorter distance. Higher capacity drives should therefore run cooler than lower density drives because the drive spends less time spinning to access data.

How can I use an external hard drive for capturing? I don't have enough mem

I'm new at this...I have a Powerbook G4 and not nearly enough memory for capturing a full size video. Is there some way to send it to an external hard drive- for capturing, then burn it in my laptop? Would that external hard drive have to have IDVD loaded on it?

Hi artdrake
Just to add to the already good advice posted above.
Another possible approach which works for me, assuming the ext. FireWire HD is large and fast enough (I recommend at least 120GB and 7200rpm) is to format the the ext. HD as stated above (journaled) and then clone your existing startup volume (using Carbon Copy Cloner) to the ext. Hard Drive. This will circumvent installing a fresh OS as well as all the iLife apps to the ext. device. You will simply make an exact copy of your laptops HD to the ext. volume. It takes me all of 30-40 mins. on my G4 system to do this procedure whereas installing everything from scratch may take several hours.
Click Here for example/s:
Once this is completed and assuming the ext. drive is connected securely via Firewire, Restart the computer while holding down the option key. Select the ext. FW HD. Once your G4 laptop is booted to external drive, use it as you would the primary drive. The only difference is that you now have plenty of room to capture to or to burn a DVD. This saves you from consuming much needed HD space on the G4 laptop plus it also serves as a fully operative backup hard drive for your G4.
Hope this suggestion works as well for you as it does for me. Feel free to post back with additional questions/concerns.
(3) G4 PM's/(3) S-Drives/Sony TRV900/Nikons/6FWHD's/PS7/iLife06/FCPHD/DVDSP/etc. Mac OS X (10.4.8) My ichatav AIM account is: SDMacuser1 (Please use Text chat prior to video)

Formatting external hard drive for mac

Hi I am having trouble reformatting an external Hard drive from my Windows computer to my new Mac any guidance would be appriciated thx.

http://www.cultofmac.com/92845/formatting-external-hard-drives-in-os-x-video-how -to/

The best external hard drives for macs

Can anyone recommend a good external hard drive for a mac computer; preferably the IMac OS 10.5.6 desktop. Thanks!

Personal Experience with the One Touch Series:
Keep a VERY CLOSE EYE on that Maxtor One Touch!
I had two of the 1TB Firewire 800 models at one point. Hard drives failed on one of them within a month. Warranty replaced the unit but not the data. After a year, the tiny fans died and the drives overheated, resulting in total loss of both enclosures and all the data on them (within a week of each other).
Those things are not meant for continuous use. If you only use them for periodic backup purposes, and then shut them off, they may be fine.
Maxtor's setup software for the Mac was a PITA, too. The version included on the disc was worthless. Disk label indicated one version, actual version on the disc was an older, incompatible version. Maxtor sent a replacement disc. It was the same disc with the same problem. Finally located the correct installer on their website. That was a few years ago.
I'll never touch the touch series again as a result.
On the other hand, I've had a SmartDisk FireLite 60 GB (FireWire model) for my Powerbook for 5 years now with excellent performance. I have no problem recommending SmartDisk drives.
-mt

Looking for external hard drive for Mac book air

I'm looking for a external hard drive for my Mac book air

What features are important to you?
Size?
Capacity?
Speed?
Price?
Reliability?
HDD or SSD?
Desktop or portable?
Just about any USB external drive will function properly, with only a few exceptions. I would avoid the Toshiba Canvio using USB 3.0, as it has been the topic for numerous threads here wherein users have had problems using them with the MacBook Air.
My personal favorite external HDD right now is the Seagate GoFlex, as I can use them with the Thunderbolt adapter. But I have been eyeing the new LaCie Rugged Thunderbolt.
For super speed, I use a Crucial model M4, either using the Seagate Thunderbolt adapter, or I have some mounted in USB 3.0 housings.

How do i reformat an external hard drive for mac

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