Things to try.
Try installing in safe mode.
If that doesn't work, when installing choose custom and then minimum install.
Or. 1. Create a folder on your desktop called FS9.
2. Insert Disc 1 into the drive.
3. Go to My Computer and right-click on the disc, click Explore.
4. Highlight all of the files on Disc 1, then right click Edit > Copy.
5. Open the folder you made on the desktop,right click Edit > Paste.
6. Repeat these steps with all 4 discs.
7. Open the folder on your desktop again and double-click Setup.exe to run the installer.
8. Follow through the installation as normal.