System auto switches back to balanced power mode. Solved!

[DeadlyTitan]

So i always have had this problem with my new rig ever since i built it a few months ago, but i neglected it cause i really didn't needed to switch to high performance mode as i was satisfied by my systems performance, but it always bugged me and today finally I've decided to seek out some help. The thing is my system just refuses to switch to High performance mode and auto switches back to balanced mode as soon as i try to set it to High performance mode. Its creepy that it does it on its own like as soon as i switch to high performance mode just switches back to balanced mode. Here look how it's refusing to go to high performance mode ... Sorry for the vid quality Imgur messes up with the compression.

My system specs -

• i7 8700
• GTX 1080 Ti
• 2x16 GB (32 GB) Crucial Ballistix 3200 Mhz cas 15 Ram
• Samsung 960 Pro 512 GB NVMe Boot drive
• Samsung 860 Pro 1 TB Game drive
• Toshiba 3 TB 7200 RPM 128 MB catch storage drive
• Corsari RMX 750w PSU
• MSI z370 Krait gaming Motherboard.
• Windows 10 x64 Latest build.

 

[VirtualLarry]

Is Samsung Magician installed?

 

[DeadlyTitan]

Is Samsung Magician installed?

Solved it. It was windows fast boot preventing that. Weird but after turning off fast boot i can now switch between modes and set them as i like. And yes samsung magician is installed.