Can not Start Windows Process Activation Service

Got an error message after uninstall IIS7 on windows 2008 R2, and deleted the C:\inetpub folder.

"The Windows Process Activation Service service terminated with the following error:
The system cannot find the file specified."

 http://technet.microsoft.com/en-us/library/cc734935.aspx, which has, as the first option for solving this problem:

To resolve this issue, make sure that the appPools directory meets the following requirements:
- The directory must exist.
- The directory cannot be on a UNC path.
- The directory must be available to WAS and should have the following permissions:
* SYSTEM: Full Access
* Administrators: Full Access
* IIS_IUSRS: Read

Uninstall MySQL on windows

If you run into trouble and want to start over. Follows these steps ot uninstall MySQL:
1. Open the Control Panel and Choose Add or Remove Programs. Find the MySQL 5.0 OR MySQL 5.1 entry and choose the UNINSTALL/REMOVE button.
2. After it uninstalls, click on Start-->Run . Type "regedit". Open
HKEY_LOCAL_MACHINE --> SOFTWARE-->MySQL AB
Delete MySQL AB if it exists
3. Go to C:\Program Files . Look for "MySQL" Folder and delete it
Restart your system. Now you should be able to re-install MySQL .