QGIS » QGIS Application

From
https://gis.stackexchange.com/questions/225923/how-to-avoir-ioerror-errno-13-permission-denied-when-running-r-reclass-from

(also verified in 2.18 on Windows myself)

While it works fine on Linux, r.reclass is failing on Windows:

2017-01-26T12:25:14 2   Uncaught error while executing algorithm
            Traceback (most recent call last):
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\core\\GeoAlgorithm.py", line 203, in execute
                self.processAlgorithm(progress)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\Grass7Algorithm.py", line 274, in processAlgorithm
                func(self)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\ext\
_reclass.py", line 45, in processCommand
                with open(tempRulesName, "w") as tempRules:
            IOError: [Errno 13] Permission denied: u'tmp1485429914724

It seems that the TEMP dir is not set properly.