I am running windows 10 on macbook pro early 2011. I used BOOTICE as described in the link below to enable AHCI mode for SSD drive. Tutorial: Enable SATA AHCI Mode in Windows 7,8,8.1 10 | MacRumors Forums My problem now is the computer cannot wake up from sleep. How can I undo the changes made by BOOTICE and go back to IDE mode and resolve the problem causing the computer not to be able to wake up ? The registry file AHCI.Detection.Reset.reg has made the following changes [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storahci\StartOverride] "0"=dword:00000000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStorAV\StartOverride] "0"=dword:00000000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStorV\StartOverride] "0"=dword:00000000 Thank you.