Reset (S)ATA controllers to DMA

This is a useful visual basic script that will reset your (S)ATA controllers back to DMA from PIO mode. Sometimes Windows will downgrade to PIO mode because of data errors, when this happens your computer will appear to run really slowly (It's not really, it is merely waiting for data from the hard drive).

Please be aware a slow computer can also be a sign of virus infection.

Simply download this script and run/open it. If it tells you it has reset things then a quick reboot should result in you seeing a massive speed improvement.

resetdma.vbs