Oracle Installation Issue Please ensure that this directory is writable and has at least 45MB of disk space

Virus
AntiVirus
Rights
Space in temp

Cross verify the registry using 'regedit' and check it doesn't have any unclean services of previos oracle installation (if any).

a) Insufficient free space in the temporary directory.
b) Insufficient access rights on the temporary directory.
c) Not using a local console.
d) Corrupted software set.
e) Wrong Unzip utility is used.



For Database: %Oracle_extracted_media%\database\install\oraparam.ini


Edit value: BOOTSTRAP=TRUE
New value: BOOTSTRAP=FALSE << this allows OUI creates less files /tmp and avoids creation of autorun.inf file @ %tmp%


2) Then run the setup.exe -debug from the media (where the file praparam.ini edited ).

Example: run setup.exe -debug from required media location

cd %Oracle_extracted_media%\database\setup.exe




create autorun.inf file in temp folder, try to save this

unload officescan