Can't clear Recycle Bin, too many files

Due to a problem while zipping a large file I ended up with around half a million tiny files in my recycle bin. When I try to empty the bin the computer crashes after a while and after alerting me that it has not enough RAM.

I've tried several methods of emptying the bin, to no avail. I tried the following approaches:

1. used tools like CCleaner, NirCMD and others;
2. ran CMD as admin and tried rd /s /q C:*recycl* > nul which only lead to Windows telling me that the syntax would be incorrect;
3. tried rd /s /q C:\$RECYCLE.BIN which leads to Windows telling me that it can't find it;
4. selected show hidden objects in the Explorer since I wanted to delete the Recycle Bin there but I can't find it on any of my three drives.

I'm using Windows 10 64-bit by the way. Any help would be much appreciated!