Sadly yes, for games only. Since I have 6 computers for gaming and LAN parties, a lot of games we like run better in Windows. Everything else can be done solely in Mint.
I gave up with Win8 64-bit because of GPT partition type. Linux 17.2 and 17.3 beta refused to see the partitions.
I'm installing Windows 7 64-bit this morning and having the exact same problem!
Grrr
I am so tempted to go Mint all the way!!!
I made a list of all my Co-op games and there are about 19 games that will have to be run in PlayOnLinux.
I've found that some of them do not connect with Windows and Linux (PlayOnLinux) but others run fine.
I have 16 games that are native Linux compatible, so those are fine.
My other problem is video card. I have two GeForce 8800's, a GeForce 9800 and two AMD cards.
The 8800's and 9800 would be "ok" for Linux, but newer cards run much better.
Until I get newer video cards I would be sacrificing speed in Linux with these games.
UFEI is easier to navigate and make changes, but is a real PAIN for multiple Operating Systems