I sent this to technical support but got the most useless, automated reply ever.
I haven't played Oblivion since mid 2013 before i moved back onto CoD, dad uninstalled it after i hadn't played it for a few weeks.
Suddenly got bored and sad today after i realised my AoE3 disc was trashed.
Found Oblivion apparently still on my computer, launched it, selected 'Play' and i got this message -->
'The Oblivion Launcher could not find the Oblivion game executable. Please reinstall Oblivion'.
sigh
Launched it again, selected 'Uninstall' this time and after a couple of minutes of what sounded like my computer failing to read the disc.. i got this message -->
'Unable to authenticate original disk within time limit. Try again?'
My Oblivion game is an authentic version.. it's the GOtY edition with both expansions which i bought when it was released from either Game or HMV.
I've literally tried everything under the sun. Someone on google suggested searching for any old files from 2013, so i did.. using CCleaner and also searching in my Local Disk for any files linked with 'Bethesda', 'Elder Scrolls' and 'Oblivion'. Deleted those, restarted my computer and i am still getting the same messages. I even tried uninstalling it from setup, but again.. i get the same messages.
Any help is greatly appreciated.. love and miss this game.
Just including this (safe) photolink to what my game files look like..
http://orig01.deviantart.net/379a/f/2016/091/8/4/ob_1_by_lavander_thistle-d9xcg9a.jpg
http://orig04.deviantart.net/b391/f/2016/091/d/6/ob_2_by_lavander_thistle-d9xcifg.jpg
http://orig02.deviantart.net/45fa/f/2016/091/4/9/ob_3_by_lavander_thistle-d9xcig3.jpg
Very frustrating.