I got to know this of late that sometimes when your windows is loading like “siput” (slow), you may wanna try to remove two registry keys
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}001
There is the Master Checksum and the slave checksum. Remove it and reboot and your windows will realy fly.
Give it a try.
** Disclaimer: Don’t come to me if you have data lost. Use at your own risk.