delete the acrobat folder
c:\program files\adobe\acrobat 7.0
delete the entire acrobat folder
(or as much as you can install, you may need to boot into safe mode
[f8 at startup])
open registry editor
start-run type: regedit
hit ok
navigate to
HKEY_Current_USER\Software\Adobe
delete the acrobat reader folder
navigate to
HKEY_LOCAL_MACHINE\SOFTWARE\Adobe
delete the acrobat reader folder
delete the "backup" folder
delete the "repair" folder
if you have other adobe products installed, do not delete the whole
backup and repair folders, instead navigate through those folders
and only delete the folders labled "acrobat" or "Reader" or both
use hijack this to remove explorer entries of adobe
I did all the above and it still didn't work, the key it seemed to be was below, i would still remove all the above, however the next steps are crucial to getting this stupid problem resolved
remove this folder:
c:\windows\installer\{AC76BA86-7AD7-1033-7B44-A70000000000}
Then do a registry search for this
{AC76BA86-7AD7-1033-7B44-A70000000000}
(your folder may be different than this, i found this folder because wen i tried to install the new version of adobe it would stall and display this folder when it gave me the message that installation had failed, you can also navigate to this folder and find adobe installation files in it to tell for sure.)
I removed all root folders that had this entry in it, accept for the folders that where about file extensions and such, because those are still needed, after i removed all the folders that had this entry in it, the installation worked. Please be very carefull when removing folders in the registry because you could seriously damage your windows installation.
or try this
http://www.foxitsoftware.com/