Program New Usb For Both Mac And Pc
Want to use one external drive for both your Windows PC and your Mac? One hurdle you'll face is that, by default, these platforms use different filesystems. Possibly the best solution to using a hard drive with both Windows and Mac without the use of third-party software is creating two partitions on the drive, one for Windows and one for Mac. The MS-Excel and MS-Word files that I worked on for years (under my Mac system OS 6.0.7 on Mac SE-30) are stored on the Mac SE-30 hard-disk and on Zip-disks. I’d like to transmit those old files to a new mac laptop since I urgently need to work on these files on a new Mac machine and to finally work on them under Windows on PC laptop. To put it simply, if you want to share external hard drive between Mac and PC, you need to format an external hard drive for Mac and PC. Currently, hard drives for Windows PC are always formatted with NTFS, while hard disks for Mac are formatted with HFS+.
Hello and welcome to my User Tip.
The new hard drive could have a file allocation size limit of 2 GB or so, which can be problematic, while storing a bigger file onto the disk. Format mac hard drive on windows 10. But, with this cross platform compatibility, there are certain stability or facility issues.
I will explain to you just the basics how storage drives operate in regards to different operating systems, formatting and partitions, especially sharing data with Windows PC's which is the most common asked about issue.
For simplicity sake, I have stuck to the most current used formats and steps on Mac's and PC's that your likely to encounter and encouraged to use now.
Remember to always: 'Safely remove hardware' before physically disconnecting from a PC
and also to drag the drive to the Trash Can/Eject before physically disconnecting on the Mac.
Quick format methods
Whenever you changing the drive, there is the potential for the lost of data.
So make sure you have a copy of the data off the drive your attempting to change and physically disconnect all other non-essential drives so no mistakes occur.
#1 If you want to format a drive, USB Thumb drive etc., to only work with a recent Mac and to boot OS X with
Open Disk Utility and select the drive makers name and size on the far left, then Partition: Options: GUID partition table and Format: OS X Extended (Journaled) name it and click Apply.
#2 Format a drive, USB thumb drive etc., to work with Mac or a PC, on a PC. (most compatibility)
Take it to the oldest Windows PC your going to share data with, usually XP, right click on it's icon and select format:
exFAT - for large video/movie files use +4GB (pre-10.6.5 Mac's can't read this format, use FAT32)
FAT(32) - for most anything, small use (under 4GB sized files), thumb drives, most compatibility with connecting to TV's consoles and other devices
If your Windows XP machine doesn't have exFAT, there is a free download from Microsoft.
#3 Format a drive or USB thumb drive etc., to work with Mac or PC, on a Mac (most compatibility)
Take the drive to the oldest OS X version on the Mac(s), Open Disk Utility and select the drive makers name and size on the far left, then
Partition: Options: MBR partition table
Format: MSDOS (FAT32) - for under 4GB files and to work work with consoles, devices that need firmware etc., or
(Format: exFAT - for over 4GB sized files (Mac's pre OS X 10.6.5 won't have exFAT))
Note: Reports of issues that exFAT formatting on a Mac doesn't work well with Windows PC's, use the oldest Windows version instead.
#4 Format a drive or USB thumb drive etc., to work with only between recent Mac 10.6.5+ & Vista-Win 7, on a Mac
Open Disk Utility and select the drive makers name and size on the far left, then
Partition: Options: GUID partition table
Format: MSDOS (FAT32) for under 4GB sized files, or
Format: exFAT - for +4GB sized files (exFAT is proprietary, patent pending, may have to pay later)
Note: Reports of issues that exFAT formatting on a Mac doesn't work well with Windows PC's, use the oldest Windows version instead.
More in depth explanation
Partition Map or Table - is instructions written at the beginning of the drive that tell the hardware it's running from: what, how many, and where the partitions are on the drive. There is only one partition map on the drive. It can be MBR or GUID.
Partition - is a space on the drive that appears as another volume, but still resides on the same piece of physical hardware.
Formatting - is how a entire drive or partition is structured to hold data, one drive can be partitioned into many separate partitions each with their own formatting. The Partition Map holds all the information of what is what.
Changing the partition map/table scheme will erase all data on the entire drive, it's like burning a treasure map, no directions anymore.
Changing the format of a single partition on a multi-partitioned drive only erases the data on the partition being formatted.
Questions
How do I format a entire external drive on a Windows PC?
Open the file manager and locate the drive (empty of data, or data you wish to delete) and right click on it and 'format' and choose a format, Windows will create the MBR or GUID automatically if there is none depending upon what version of Windows your using.
It's best to format on the oldest PC being used as the future versions of Windows (and Mac's) can read the older formats.
I have a drive from a Windows PC, the Mac can/not read or not write to it. What do I do?
It's likely formatted NTFS by Windows, it's best to take it back to the Windows machine, remove the data and reformat it FAT32 or exFAT, then place the data back on. (please read further on about the differences between FAT and exFAT)
Recent Mac's can read NTFS, but not write to it, so this might be enough to transfer data off, then reformat the drive. Check the data was transferred and is accurate before changing the drive format and thus erasing it.
There is third party software than can be installed enable read/write of the NTFS format on Mac's, you'll need to search online for it. It's hassle, you'll have to pay and have it updated like any other software. A neutral exFAT or FAT32 (MSDOS) format is better as either platform can read it without more software installed.
How do I format a entire external drive on a Mac?
Unmount and disconnect all other drives to prevent a mistake. Open Disk Utility in the Applications/Utilities folder and select the drive on the far left with a makers name and size, then click Partition tab: Options: (for a establishing a specific partition map scheme), partitions, and Format (for selecting a specific format for the drive/partitions)
How do I format a drive for booting with a Mac?
Same steps as above, choose GUID as the Partition map under Options, and OS X Extended journaled (HFS+) as the format for the partition your going to be installing OS X into. Windows needs MacDrive to access this Apple HFS+ drive format.
There is no choice for MSDOS format on the PC, or FAT32 on the Mac, what do I choose?
FAT32, if it just says FAT, it usually means FAT32 (as FAT16 is on the way out.). MSDOS is what Apple calls FAT32.
I formatted the external drive exFAT or FAT32 (MSDOS) on my Mac and took it to a PC and it asks me to format!
Don't format it (unless your willing to erase all the data on it)
Take the drive back to the Mac and copy off the data (if you don't have a copy on the Mac already) and try formatting it again, this time making sure to select the Option: MBR then chose the format. (exFAT or MSDOS) and click apply.
If it still doesn't work, format the drive on the PC.
OS X appears to be using too big of a block size. It's technically correct, but Windows doesn't like it when the block size is larger than 1024 KB. Formatting on Windows creates the disk/flash drive with a smaller block size that both system like. Unfortunately, OS X doesn't give you an option to pick a block size. It just uses a default in relation to the size of the drive being formatted.
I went to format a Bootcamp / second partition on my boot drive and it's restricting my size, I know I have more free space available
Your partitions are stacked like so before creating the second partition.
EFI (hidden)
OS X - say 100GB
10.7+ Recovery HD (if on 10.7+, hidden)
Your partitions are stacked like so after creating the second partition.
EFI (hidden)
OS X - 50GB
Bootcamp / Second Partition - 50GB
10.7+ Recovery HD (if on 10.7+, hidden)
When you try to create a Bootcamp / Second partition it's started from the bottom free space remaining on the OS X Partition and works it's way up until it hits data written on the drive from OS X. If that partition size is too small to install Windows, then Bootcamp will say it can't continue.
Hard drives write data on a drive from the top down where it can find space. When files are deleted it leaves holes and thus the data on the drive isn't all nice and compact all the time to provide all the free space at the bottom of the drive to create the second partition.
To fix this requires cloning one's OS X partition to a external drive, hold option boot from it to check it out, erase the OS X partition in Disk Utility (booted on the clone) onto the internal drive OS X partition, then reverse clone the external OS X partition back onto the internal OS X partition.
This will effectively write all the data of the OS X partition starting from the top of the partition and working downward, so when you boot off the internal OS X partition you will be able to format your second partition with more of your remaining free space available.
Read more about clone/reverse clone here:
Can I have more partitions on my boot/external drive?
With OS X, your allowed to create one more partition using Bootcamp on the boot drive. It's formatted FAT32(MSDOS) which if you go and install Windows 7 via their install methods will change that format to NTFS. (have to change the format as Windows only installs into NTFS)
You can create/delete one more partition using Disk Utility or Bootcamp on the boot drive and then use Disk Utility to change to another format for that partition, but DU won't format NTFS. You really only get one more partition on the boot drive, if it's used up for Bootcamp that's it.
You can use Disk Utility to change the format of the Bootcamp partition to GUID and OS X Extended Journaled and install OS X there, or clone it from the first partition even.
Technically it's possible to have up to 16 partitions on a external drive, but the OS X internal boot drive is mostly limited to one extra.
Use a blank external drive, Disk Utility and experiment applying Partition Map schemes, creating partitions and formatting those partitions.
Creating/deleting a partition on a booted system can be risky, always have a copy of your personal user data files off the machine before proceeding.
Bootcamp or Disk Utility hangs or won't format
If you have a problem formatting your second partition in Disk Utility or Bootcamp, quit Bootcamp, hold c and boot from the 10.6 disks, or hold command r keys and boot (wired or built-in keyboard required) into RecoveryHD and use Disk Utiltiy to Repair the drive twice.
Then reboot normally use Disk Utility >Erase Free Space > Zero first on the OS X partition, let it work, takes a while and then try creating your Bootcamp or Disk Utility partition again.
If you have a problem formatting your external drive, or any partition on that drive, don't care about the data there, then use Disk Utility >Erase > Zero either that whole drive, or the partition (be careful what you choose!) then try formatting again. Zero Erase the entire partition or drive removes all data on it.
Also there is a issue with BootCamp that there is files where it needs to go on hard drives.
What's the difference in Disk Utility between the entire drive/media, and partitions?
The entire media will have the size and the makers name on the left, the partitions on it are indented underneath.
When one selects their entire drive media, they are affecting change to all partitions on the drive, hidden included.
Note: In 10.7+ selecting the entire drive likely is only possible via a external boot drive/disk/USB (or via Firewire Target Disk Mode w/another Mac)
Note: 10.6 doesn't have a Recovery Partition like 10.7+ has, if it was it would be the last partition on the media.
This graphic shows a 10.6 internal drive with the secondary partition and the hidden EFI partition made visible, you won't see this normally.
In this guide to the best external hard drives for Macs, we look at the top devices for plugging in and expanding the storage space of your Mac or MacBook.
While there's a lot to love about Macs, iMacs and MacBooks, they are also tricky to manually upgrade, which means if you run out of space, it isn't too easy to open them up and pop in a bigger hard drive. While you can look into taking your Mac to an Apple Store (or an Apple-approved vendor) to perform the upgrade, this can end up being pretty costly.
So, one of the more affordable (and easiest) ways to expand the storage space of your Mac or MacBook is to use an external hard drive, and this list of the best external hard drives for Macs will help you choose the best drive for your needs.
An external hard drive is essentially a hard drive that comes enclosed in a case. It plugs into a Mac via a cable.
The other major plus is the portability of an external hard drive means you can take it with you and plug it into another device for instant file swapping – handy if you swap between PCs and Macs regularly.
When looking to buy the best external hard drive for Macs for your needs, you should consider how much capacity you need. External hard drives come in all shapes and sizes, and you don't want to pay too much for space you'll never need, but neither do you want to cheap out and run out of space all too quickly.
Speed is also important. SSDs are faster than traditional hard drives, and you should consider what cables they use as well. USB 3.0 is fast, but Thunderbolt is faster. If you want to store lots of large files on your external hard drive, then consider going for the fastest drive you can afford.
In this guide to the best external laptops for Macs we take that into consideration - as well as ease of use, affordability and dependability. This last consideration is perhaps the most important, as when you're entrusting your important files to an external hard drive, you need to be confident that it won't break and lose your data.
Format A Usb For Both Mac And Windows
1. Western Digital My Passport 4TB external hard drive
Capacity: 4TB Interface: USB 3.0
This is the latest generation of the Western Digital My Passport external hard drives comes in capacities from 1TB to 4TB, and features cloud storage and 256-AES encryption, along with WD's own backup software. While transfer speeds aren't the quickest, due to its USB 3.0 connection, it offers a good balance between speed, capacity and price.
2. Buffalo MiniStation Thunderbolt external hard drive
Capacity: 1TB, 2TB Interface: Thunderbolt, USB 3.0
If you want to make use of your Mac's Thunderbolt port, then this is a great option, as it provides twice the speeds of standard USB 3.0 drives. It still uses a traditional hard drive, rather than an SSD, and while this means speeds aren't quite as fast as possible, it at least keeps the price down, while offering large capacities. There's also a USB 3.0 port for connecting to computers that don't have a Thunderbolt port.
3. G-Technology G-Drive USB 3.0 4TB external hard drive
Capacity: 4TB Interface: USB 2.0, USB 3.0, eSATA, FireWire
This is one of the fastest high capacity hard drives you can plug into your Mac, with a huge 4TB of storage space that zips along its USB 3.0, eSATA or FireWire connection. The all-aluminium enclosure gives the drive a premium look and feel, while also protecting your data from knocks and drops, and keeping the drive cool when used.
4. Samsung T3 SSD
Capacity: 1TB Interface: USB 3.1
If you really want a super-fast external hard drive for your Mac, then the Samsung T3 SSD is easily one of the best. As it uses a solid state drive, the read and write speeds of this drive are much faster than external hard drives that use traditional hard drives. It does mean the price is higher, but if transfer speed is the most important consideration when looking for the best external hard drive for your Mac, then this is the drive to go for.
5. Buffalo MiniStation Extreme NFC external hard drive
Capacity: 2TB Interface: USB 3.0
With compatibility for both Mac and Windows machines, the Buffalo MiniStation Extreme NFC is very flexible, and comes with a rugged case that's dust and water resistant, along with a built-in USB 3.0 cable. Not only is your data kept protected from knocks and drops with the rugged shell, but it's also got 256-bit AES security features and NFC (Near Field Communication) features as well. This is a great external hard drive for your Mac if you are concerned about keeping your data safe and secure.
6. Western Digital My Passport Ultra external hard drive
Capacity: 4TB Interface: USB 3.0
Program New Usb For Both Mac And Pc
The latest generation of the Western Digital My Passport Ultra range of external hard drives has landed, coming in sizes from 1TB to 4TB. It features cloud storage and 256-AES encryption, along with WD's own software suite.
It is a good performer when it comes to data transfer speeds but doesn't come near the top of the leaderboard. Unsurprisingly, it doesn't reach the top speeds of solid state external drives, but for external hard drives based on traditional HDDs, this is the drive to consider.
7. LaCie Porsche Design Mobile Drive 4TB
USB-C star
Capacity: 4TB Interface: USB-C
You may have stumbled upon the LaCie Porsche Design Mobile Drive when perusing the Apple website for USB-C accessories. There’s a reason for that: the Porsche Design ships with both USB Type-C to Type-A and USB Type-C to Type-C connectors, making it a worthy candidate regardless of your setup.
It’s expensive for an external hard drive, don’t get us wrong, especially if you’re in the market for the top-end 4TB option. On the other hand, this is an HDD that could theoretically output speeds of up to 5Gbps, if it weren’t hindered by the limits of SMR (Shingled Magnetic Recording) technology. With MacBooks coming with USB Type-C connections, this is an excellent - and stylish - external hard drive that makes the most of this speedy new port.
8. iStorage diskAshur 2TB external hard drive
A brilliant external hard drive for extra security
Capacity: 2TB Interface: USB 3.0
If you're worried about people getting access to your data if your external hard drive is stolen, than you'll like the iStorage drive here. If someone tries to tamper with your iStorage drive, you can configure it to self-desturct. What's more, the data is encrypted by the 256-bit AES protocol, with multiple forms of protection in place to ensure the bad guys don't get in no matter how persistent. When you consider all that extra security, the prices won't scare you away either. It's more pricey than the other drives of its capacity, but the extra security it offers will be well worth it for many people.
- Check out our list of the best external hard drives in 2019