IDE 1.6.8 not compiling on Windows 7

After a supposedly flawless installation, I get the following error on trying to compile the Blink example. This is taking place on a Parallels Desktop virtual machine on a Mac, in case it has anything to do. The PC\AppData path is indeed absent in the Arduino installation folder (not invisible either). Can someone help?
THANKS

Arduino: 1.6.8 (Windows 7), Board: "Arduino/Genuino Uno"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware "C:\Program Files (x86)\Arduino\hardware" -tools "C:\Program Files (x86)\Arduino\tools-builder" -tools "C:\Program Files (x86)\Arduino\hardware\tools\avr" -built-in-libraries "C:\Program Files (x86)\Arduino\libraries" -libraries "C:\Users\Juan's PC\Documents\Arduino\libraries" -fqbn=arduino:avr:uno -ide-version=10608 -build-path "C:\Users\Juan's PC\AppData\Local\Temp\58e9973bb6e2e908c6c199f5a9d39075.tmp\output" -warnings=none -prefs="board=uno" -prefs="build.path=C:\Users\Juan's PC\AppData\Local\Temp\58e9973bb6e2e908c6c199f5a9d39075.tmp\output" -prefs="target_package=arduino" -prefs="target_platform=avr" -prefs=build.warn_data_percentage=75 -verbose "C:\Program Files (x86)\Arduino\examples\01.Basics\Blink\Blink.ino"
GetFileAttributesEx C:\Program Files (x86)\Arduino\PC\AppData\Local\Temp\58e9973bb6e2e908c6c199f5a9d39075.tmp\output: The system cannot find the path specified.

Error compiling for board Arduino/Genuino Uno.

Start by reproducing the Blink.ino compile using the reported arduino-builder command on Windows 7, paying attention to the generated build path and the missing AppData segment. The issue is resolved when the Arduino/Genuino Uno Blink example compiles successfully in that environment.

Written by the indexing model from the issue text.