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<blockquote data-quote="MacInWin" data-source="post: 1836163" data-attributes="member: 396914"><p>Quilica, it is generally acceptable to run applications from external drives, but there are at least two caveats to that:</p><p></p><p>1. The application will be slower than if internally installed. The input/ouput speeds to external drives are not as fast as the bus speeds to the internal drive. Those external drives are, however, catching up and Thunderbolt3 may actually make it a pretty small difference.</p><p></p><p>2. Some applications will need to have temporary files and customization files that get sprinkled on the drive on which they are installed as well as on the boot drive. And some applications expect to be run from the boot drive, so they are going to be looking for some of there files there.</p><p></p><p>I tried running my applications from an external drive for a while, but gave up on the exercise as it was more trouble than it was worth. </p><p></p><p>As for Windows of any flavor, yes, it can be run from an external drive. (Assuming you can get it installed there. I have read that MS is trying to block external installations for piracy reasons.) But it will be dead slow because, again, it will have some files that are on the boot drive that it uses constantly and the I/O to externals is slow unless you are at USB-c or TB3 level speeds. I tried that, too, and gave up on it and now run Win10 in a Parallels virtual machine when I need it.</p><p></p><p>What you can do, and which works pretty well, is to store your data on an external drive. There will be a bit of a performance hit when the data is read into the application, but after that it works will until you write it back out, when the I/O will again slow things down a bit.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1836163, member: 396914"] Quilica, it is generally acceptable to run applications from external drives, but there are at least two caveats to that: 1. The application will be slower than if internally installed. The input/ouput speeds to external drives are not as fast as the bus speeds to the internal drive. Those external drives are, however, catching up and Thunderbolt3 may actually make it a pretty small difference. 2. Some applications will need to have temporary files and customization files that get sprinkled on the drive on which they are installed as well as on the boot drive. And some applications expect to be run from the boot drive, so they are going to be looking for some of there files there. I tried running my applications from an external drive for a while, but gave up on the exercise as it was more trouble than it was worth. As for Windows of any flavor, yes, it can be run from an external drive. (Assuming you can get it installed there. I have read that MS is trying to block external installations for piracy reasons.) But it will be dead slow because, again, it will have some files that are on the boot drive that it uses constantly and the I/O to externals is slow unless you are at USB-c or TB3 level speeds. I tried that, too, and gave up on it and now run Win10 in a Parallels virtual machine when I need it. What you can do, and which works pretty well, is to store your data on an external drive. There will be a bit of a performance hit when the data is read into the application, but after that it works will until you write it back out, when the I/O will again slow things down a bit. [/QUOTE]
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