Answer to 1) make sure your drive burner/HD are both in DMA positions:
- go to Control Panel>System>Hardware>Device Manager then Find IDE ATA/ATAPI controllers and press + next to it , so the list expands.
Then right click on Primary or Secondary Channel and choose PROPERTIES, and then choose ADVANCED PROPERTIES. Check DMA if available. That's it, and reboot!
2) try to emty your temp files from temp directory:
Check the windows/Temp directory, open it Select all files and delete it!
3) try to defrag your hard drive:
MY COMPUTER>Drive C>right click and choose PROPERTIES>TOOLS>DEFRAGMENT NOW!