Hi,
Follow these methods:
Method 1:
Refer to the article and try to run the troubleshooter:
Fix problems with programs that can't be installed or uninstalled
http://support.microsoft.com/mats/Program_Install_and_Uninstall
Method 2: Adobe has published a KB article to address this issue. Refer to the article:
Error 1327.Invalid Drive: [drive letter] while installing or updating Adobe CS4, Acrobat or Adobe Reader Products affected
http://kb2.adobe.com/cps/404/kb404946.html
Disclaimer:
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added
protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge
Base:
How to back up and restore the registry in Windows:
http://support.microsoft.com/kb/322756
Refer to the article and check if it helps:
Update, patch | Acrobat, Reader 10.x | Windows, Mac OS
http://helpx.adobe.com/acrobat/kb/update-patch-acrobat-reader-10.html
If the issue persists, contact Adobe support.
http://www.adobe.com/support/
