Hi,
But did you uninstall previous versions first? You have to do that before installing version 10. If that's done see the steps below.I then tried to install Acrobat reader 10
Click Start, Run and type regedit.exe and go to following location:
HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\.pdx\PDXFileType\ShellNew
On the Edit menu(Right click on ShellNew Folder), click Permissions.
Select your user account from the list, and ensure that Full Control permissions is set to Allow.
Select Administrators group from the list, and give then Full Control permissions.
Click the Advanced button
Select Replace permission entries on all child objects with entries shown here that apply to child objects.
Deselect Inherit from parent the permission entries that apply to child objects. Include these with entries explicitly defined here
Click Apply, and then click Yes when you are prompted to continue. Click OK, and then click OK again.
Exit the Registry editor.
See if you're able to install Adobe Reader now (if still error appears post back a screenshot of it).