Why wont my mac boot my windows partition?

[Sdreed91]

I had it working for about 3 restarts, and now it just wont work. I start a fresh boot and hold down the option key and then select my partition but windows wont boot instead OS X boots. Any ideas?

 

[techguy20]

Had you installed anything new prior to the issue?

 

[JediMeister]

I seem to recall an issue like this if you have NTFS-3G installed. Is the partition visible within Startup Disk preferences? If it is visible and you can boot from Startup Disk preferences and you have NTFS-3G installed, try disabling it and test if it works as expected.