I have made 2 or 3 attempts at installing autocad 2015 however it would reach the installing screen and go no further. Instead I tried downloading Autocad 2014, this allowed to reach further into the process then it simply informed me that the installation process was complete but that some of the software may not have installed (none of it did).
The error report read as follows:
2014/10/16:10:29:26 James JAMES-LAPTOP === Setup started on JAMES-LAPTOP by James ===
2014/10/16:10:29:26 James JAMES-LAPTOP Path_Length: 155
2014/10/16:10:29:26 James JAMES-LAPTOP Current Directory C:\Autodesk\AutoCAD_2014_English_Win_32_64bit_wi_en-us
2014/10/16:10:29:26 James JAMES-LAPTOP Launch
2014/10/16:10:29:26 James JAMES-LAPTOP CommandLine /url "http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/AutoCAD_2014_English_Win_32_64bit_wi_en-us_Se... /SN 900-36619152 /PK 001F1 /student /akamai /skipEULA /auth authparam /sid SESSION_ID
2014/10/16:10:29:26 James JAMES-LAPTOP Path_Length: 155
2014/10/16:10:29:26 James JAMES-LAPTOP Current Directory C:\Users\James\AppData\Local\Temp\_AI119.tmp
2014/10/16:10:29:55 James JAMES-LAPTOP === Setup ended ===
2014/10/16:10:29:27 James JAMES-LAPTOP === Setup started on JAMES-LAPTOP by James ===
2014/10/16:10:29:27 James JAMES-LAPTOP Path_Length: 155
2014/10/16:10:29:27 James JAMES-LAPTOP Current Directory C:\Users\James\AppData\Local\Temp\_AI119.tmp
2014/10/16:10:29:27 James JAMES-LAPTOP Launch
2014/10/16:10:29:27 James JAMES-LAPTOP [Error: 1053] The service did not respond to the start or control request in a timely fashion.
2014/10/16:10:29:28 James JAMES-LAPTOP Download Play SETUP_CONFIG http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/{F5F376DB-F616-49B6-B7C4-89AEF0DF4FB7}/SETUP_...
2014/10/16:10:29:55 James JAMES-LAPTOP Download Complete SETUP_CONFIG http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/{F5F376DB-F616-49B6-B7C4-89AEF0DF4FB7}/SETUP_...
2014/10/16:10:29:55 James JAMES-LAPTOP Install CustomCallback Info Invoking custom callback for details: [SETUP] CB_FUNC=CustomPlatformCheck CB_SOURCE=C:\Users\James\AppData\Local\Temp\_AI119.tmp\Setup\AcSetup.dll
2014/10/16:10:29:55 James JAMES-LAPTOP Install CustomCallback Info Custom callback response: Status=0 SUCCECSS Title= Message= URLTitle= URLLink=
2014/10/16:10:29:55 James JAMES-LAPTOP PageOpen LaunchDialog
2014/10/16:10:30:00 James JAMES-LAPTOP PageOpen LicenseDialog
2014/10/16:10:30:00 James JAMES-LAPTOP PageOpen ProductInfoDialog
2014/10/16:10:30:00 James JAMES-LAPTOP PageOpen ProductSelectionDialog2
2014/10/16:10:30:09 James JAMES-LAPTOP PageOpen FullProgressDialog
2014/10/16:10:30:13 James JAMES-LAPTOP Download Play DIRECTX http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/{F5F376DB-F616-49B6-B7C4-89AEF0DF4FB7}/DIRECT...
2014/10/16:10:30:17 James JAMES-LAPTOP Download Complete DIRECTX http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/{F5F376DB-F616-49B6-B7C4-89AEF0DF4FB7}/DIRECT...
2014/10/16:10:30:17 James JAMES-LAPTOP Installing DirectX Runtime: "C:\Autodesk\WI\Autodesk AutoCAD 2014\3rdParty\DirectX\DXSETUP.exe" /silent
2014/10/16:10:30:26 James JAMES-LAPTOP Install DirectX Runtime Succeeded
2014/10/16:10:30:26 James JAMES-LAPTOP Installing FARO LS 5.1.0.30630 (64bit): ADSK_EULA_STATUS=#1 MUILANG=en-us SETUP_PACKAGENAME="Autodesk® AutoCAD® 2014" SETUP_PACKAGECODE={D54FD115-F651-4237-B57C-E4230340EAB6} SETUP_UNINSTALLKEYS=1 SETUP_ISLANGUAGEPACK=0 SETUP_PRODUCTDEPENDENCIES=";;;" ADSK_SOURCE_ROOT="C:\Autodesk\WI\Autodesk AutoCAD 2014" FILESINUSETEXT="" REBOOT=ReallySuppress ADSK_SETUP_EXE=1
2014/10/16:10:30:26 James JAMES-LAPTOP Install FARO LS 5.1.0.30630 (64bit) Failed Failure is ignored, Result=1618
2014/10/16:10:30:26 James JAMES-LAPTOP Download Play CM http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/{F5F376DB-F616-49B6-B7C4-89AEF0DF4FB7}/CM.tar...
2014/10/16:10:30:40 James JAMES-LAPTOP Download Complete CM http://edutrial.autodesk.com/SWDLDNET3/2014/ACD/WI/EDU/{F5F376DB-F616-49B6-B7C4-89AEF0DF4FB7}/CM.tar...
2014/10/16:10:30:40 James JAMES-LAPTOP Installing Autodesk Material Library 2014: ADSK_EULA_STATUS=#1 MUILANG=en-us SETUP_PACKAGENAME="Autodesk® AutoCAD® 2014" SETUP_PACKAGECODE={D54FD115-F651-4237-B57C-E4230340EAB6} SETUP_UNINSTALLKEYS=1 SETUP_ISLANGUAGEPACK=0 SETUP_PRODUCTDEPENDENCIES=";;;" ADSK_SOURCE_ROOT="C:\Autodesk\WI\Autodesk AutoCAD 2014" FILESINUSETEXT="" REBOOT=ReallySuppress ADSK_SETUP_EXE=1
2014/10/16:10:30:40 James JAMES-LAPTOP Install Autodesk Material Library 2014 Failed Installation aborted, Result=1618
2014/10/16:10:30:40 James JAMES-LAPTOP Rollback DirectX Runtime Failed Failure is ignored, Result=1618
Any assisstance on this matter would be much appreciated.
Generally the 1618 error means that another installation is already in progress. This could be due to a previous failed installation or a current updating thru Windows Update. I would turn off automatic updates, then reboot.
Try the installer again.
Good Luck!