Windows on a SD Card ?

NikoKaoJa

macrumors newbie
Original poster
Oct 17, 2011
7
0
So, if you can install Windows on an external USB, would it be possible to install it on a SD card?

I've looked around on this subject on the net, I didn't seem to find it on this forum. (Sorry if something on this subject already exists)

Has anyone tried this? It seems to be possible...
 

Macman45

macrumors G5
Jul 29, 2011
13,198
133
Somewhere Back In The Long Ago
Do You Mean

So, if you can install Windows on an external USB, would it be possible to install it on a SD card?

I've looked around on this subject on the net, I didn't seem to find it on this forum. (Sorry if something on this subject already exists)

Has anyone tried this? It seems to be possible...
An install from a high capacity Photo card? No. From a compressed USB version yes.

As a caveat, you could back up to an sd but media differ, and a portable Windows installation isn't really a viable option.
 
Nov 28, 2010
22,670
28
located
Even if possible, the experience will be horrible, as most high class SD cards top out at 30MB/s read or write speeds, which is a third of what an HDD offers. Normal SD cards only offer 10MB/s, which would be even slower. External HDDs connected via USB will also only offer slow speeds of around 30-35 MB/s.
While that speed is okay for some tasks, like a Mac OS X clone on a USB HDD to troubleshoot, to run a full blown OS from it for more than that, can be quite a pain.

But I have seen some threads about this, maybe use the SEARCH feature found on top to find them.
 

KeriJane

macrumors 6502a
Sep 26, 2009
578
0
ЧИКАГО!
I did this once on a CF card using an IDE adaptor.
XP managed to install OK but...

It made Windows even slower than usual! :eek:
Way, way slower.
This was before the advent of SSD.

Definetly not the way to go. Just get an SSD.
 

NikoKaoJa

macrumors newbie
Original poster
Oct 17, 2011
7
0
The thing is that I use my MacBook Pro for work, and I have a lot of valuable data that i don't want to mess around with...

I also need to have Visual studio, Delphi, PSpice and other mainly Windows programming stuff... I can chop down Win XP settings and appearance so that it uses less resources.

So when I pop in the Flash USB, usb hdd or an SD card i have my windows and programming languages, no worries about viruses and any harm to my internal Mac OS drive...
 

old-wiz

macrumors G3
Mar 26, 2008
8,315
225
West Suburban Boston Ma
The thing is that I use my MacBook Pro for work, and I have a lot of valuable data that i don't want to mess around with...

I also need to have Visual studio, Delphi, PSpice and other mainly Windows programming stuff... I can chop down Win XP settings and appearance so that it uses less resources.

So when I pop in the Flash USB, usb hdd or an SD card i have my windows and programming languages, no worries about viruses and any harm to my internal Mac OS drive...
People still use Delphi?
 

balamw

Moderator
Staff member
Aug 16, 2005
19,366
978
New England
IMHO sounds like a VM would be ideal for your needs. If you really want, the VM could easily be on an SD Card though performance will suffer.

B
 

kolax

macrumors G3
Mar 20, 2007
9,181
115
This is something I'm considering - with a 5400RPM hard drive in my Mac, it just crawls at times when I run Windows (Boot Camp) in a VM in Parallels. Even Ubuntu makes my Mac crawl when running it in a VM.

With the SD card reader limiting reads to 60MB/s, is that sufficient enough to run Windows?
 

blueroom

macrumors 603
Feb 15, 2009
6,381
25
Toronto, Canada
This is something I'm considering - with a 5400RPM hard drive in my Mac, it just crawls at times when I run Windows (Boot Camp) in a VM in Parallels. Even Ubuntu makes my Mac crawl when running it in a VM.

With the SD card reader limiting reads to 60MB/s, is that sufficient enough to run Windows?
Short answer: No.
 

Cortb

macrumors newbie
Jul 9, 2012
1
0
Longer answer,at least as I understand and it:

While your hdd reads/writes at 50MB/s. SD cards, while their read speeds can be similar to the hdd, write speed is limited to about half that, and micro sd cards write speed is maxed around 15MB/s. take a look at this: http://www.sandisk.com/about-sandis...-worlds-smallest-128gb-nand-flash-memory-chip

It says their newest, not yet on the market micro sd is limited to 18 MB/s (18million bytes/s, not 18MiB/s)

So, while your read speed would be ok at best, your write speed would be pitiful which isn't a good thing for handeling an OS.

My suggestion would be to boot camp 20 gigs on your hdd for the windows OS and use an sd card for file storage. Just read an awesome article you should check out: http://www.tuaw.com/2012/07/09/nifty-minidrive-invisible-add-on-flash-storage-for-your-macbook/
 

Kevin L.

macrumors member
Jan 17, 2008
72
0
THIS IS GENIUS! I hadn't heard about this new product, so thanks for reposting. When I first got my MBP a few years ago, I searched and searched for a solution to use the SD slot as an extra storage option, but I didn't want an SD card hanging out the side all the time. There were discussions of cutting down cards, or trying to make your own microSD adaptor. I tried some of these, but they weren't reliable.

To get back on topic, yes, I have done lots with boot camp and VM installs of Windows on external and internal media (for example, I have an XP install on my FW800 drive that I use frequently, but it crawls). My solution is what others have mentioned here; dedicate the minimum HD space to a boot camp or VM partition, then have the files for that Windows install access a storage device.
 

gabidebaas

macrumors newbie
Apr 6, 2017
17
4
I dont think the expierence is that good, why dont u want to boot from a fast usb keydrive?
 
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