How To Upload Files Larger Than 4 MB

By default, the size limit for ASP.NET uploads is set at 4MB. Although this is large enough for most sites, if you’re dealing in particularly hefty uploads, there’s a little-known technique for upping the cap.
Simply open machine.config in the \Microsoft.NET\Framework\ \Config folder and locate the following setting:

<httpRuntime maxRequestLength=4096>

Now, simply alter the maxRequestLength value to a figure of your choice. To allow uploads of up to 8MB, for example, change the value from 4096 to 8192.

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