You can do the following to troubleshoot your problem
1.check that your system meets the minimum requirement for photoshop
2.Try installing it from another local administrator user account, because sometimes a user account can become corrupted and prevent the installer from accessing or creating the necessary files and folders.
3. Install from an internal hard drive instead of from DVD. Skip this task if you purchased downloadable software.
4. Perform a Clean Boot before you install Photoshop Elements or Adobe Premiere Elements. Before installing Photoshop Elements or Adobe Premiere Elements, disable other applications, including startup items
5.Delete temporary files.
6.Repair and defragment hard disks.
7.Scan for viruses.