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Some applications write temporary files (such as updates) to my external hard drive instead of using the internal one. I want to minimize unnecessary reading and writing to my external drive. So, how do I prevent applications from using it? I tried Google, but no dice. Is this even possible?

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Which applications write temporary files on an external hard drive? Like games that automatically download an update and save it in the folder of the game? – Feroc Jan 11 '12 at 7:47
Microsoft Security Essentials and .NET Framework updates, for example, write temporary update resources to my external HDD (dumping files in the root); and they're installed on my internal HDD, so it makes no sense. Usually, the files are automatically deleted after the updates are done, though. – ulukai Jan 11 '12 at 9:37

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