You may want to try removing all traces of Reader (not only the program) from your system using the Windows Installer Cleanup Utility. This is no longer supported by Microsoft because it can produce problems with Win 7, but you can still download it from from places like
And posting your question twice doesn't contribute to receiving a prompt answer...
Why do you want to uninstall a patch? The patch called 10.0.1 is the security package released on 8 February to address vulnerabilities in the original installation (10.0). See: http://www.adobe.com/support/security/bulletins/apsb11-03.html
Similarly, 10.1.1 is also a security release dated 13 September. See: http://www.adobe.com/support/security/bulletins/apsb11-24.html You cannot uninstall either because they've now become part of the original installation.
Like Claudio says, if you don't want want to use Adobe Reader anymore, then you can uninstall the whole program via Add/Remove Programs. There are alternatives like Foxit Reader, but they're usually supported by ads.
If you're having problems uninstalling Reader completely, run Microsoft's Fix: http://support.microsoft.com/mats/Program_Install_and_Uninstall