Unable to install downloadable app

Question

I was trying to update the PPK II software, but I am receiving a error message: "Error: EPERM: operation not permitted, mkdir 'D:\'" 
 
 Well, in my Windows environment, the "D:" is a disk partition for temporary files (TEMP=D:\). Then if the instalation software is trying to create a directory d:\, this operation will be denied. 
 I removed the previous version, but the problem still happen. 
 Could you help me? 
 Regards, 
 Cláudio

Turbo J · Answer

The missing sub directory is clearly a user error here. The mkdir call will AFAIK always fail on a pure drive letter or its Root directory. 
 The correct solution is to use a sub directoy, i.e. 
 set TEMP=D:\TEMP 
 instead of trying to use a drive Root. Note that some drives generally disallow user writing (i.e. C: drive). 
 The code is trying to create the TEMP dir in case it was missing - which would succeed if and only if you use a subdir. 
 Environment variables are user accessible - but MS tried to bury the UI rather deep in menus. Check and change your TEMP environment variable. 
 
 Note that TEMP points to a suitable location by default on windows - you or a program had changed this in the past.

Unable to install downloadable app

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