MPC all Subtitle options are grayed out.

Hi everyone,
i have problem running subtitles on MPC. it happened recently and i'm not sure what caused it exactly. I don't usually change settings too.
the problem is that i can't open any kind of subtitle and i can't even have the MPC auto download them and even manually. All subtitle options are grayed out and cannot be accessed. if i go to options>playback>output everything seems to be ok since the subtitles are checked.
i tried to reset it from the tweak tool and i changed video renderer,
i tried to uninstall the codec pack and still i get the same problem.
i would really appreciate if you could help me solve this because MPC is my favorite video player.
and thank you in advance.

here are my log info.

Codec Tweak Tool | Log file | Generated at 2017-05-26 05:31:25

##### System Information #####

OS: Windows 10 Home Single Language (10.00.14393) (x64)
DirectX: 9.0c + 10 + 10.1 + 11 + 12
CPU name: AMD A10-5745M APU with Radeon(tm) HD Graphics
CPU speed: 2096 MHz (4t)
Memory: 7392 MB
Screen size: 1366x768 (32bits) (60Hz)
Video card 1: AMD Radeon HD 8610G
VendorID: 1002, DeviceID: 990f, SubSys: 22c6103c
Video mem: 768 MB
Video driver: aticfx64.dll (Version 15.201.1101.0) (8-6-2015)
Video card 2: AMD Radeon R7 M260
VendorID: 1002, DeviceID: 6900, SubSys: 22c6103c
Video mem: 2048 MB
Video driver: aticfx64.dll (Version 15.201.1101.0) (8-6-2015)
Audio device: Realtek High Definition Audio
VendorID: 10ec, DeviceID: 0290, SubSys: 103c22c6
Audio driver: RTKVHD64.sys (Version 6.0.1.7621) (9-23-2015)

##### K-Lite Codec Pack #####

KLCP version: 13.2.0
KLCP type: full

Speaker conf: 2.0

MPC renderer: EVR CP
MPC subs: ISR

##### Decoder Settings #####

LAV Video:
H264=1 HEVC=1 VP9=1 VC1=1 MPEG2=1 MPEG4=1 WMV3=0

LAV Audio:
MP3=1 AAC=1 Vorbis=1 AC3=1 DTS=1 LPCM=1 WMA=0


##### DirectShow Filters (32-bit) #####

(A total of 74 filters, 0 shown, 74 hidden)

##### DirectShow Filters (64-bit) #####

(A total of 68 filters, 0 shown, 68 hidden)

##### ICM Class Manager (32-bit) #####

(A total of 2 filters, 0 shown, 2 hidden)

##### ICM Class Manager (64-bit) #####

(A total of 2 filters, 0 shown, 2 hidden)

##### Default source filters (32-bit) #####


(A total of 66 default source filters, 0 shown, 66 hidden)

##### Default source filters (64-bit) #####


(A total of 56 default source filters, 0 shown, 56 hidden)

##### ACM and VFW Codecs (32-bit) #####

(A total of 14 codecs, 0 shown, 14 hidden)


##### ACM and VFW Codecs (64-bit) #####

(A total of 13 codecs, 0 shown, 13 hidden)

During playback look at:
Menu > Play > Filters

You should see "Enhanced Video Renderer (Custom Presenter)" in the list. If not, there may be a problem with evr.dll on your computer. That is a file from Windows. Check if the file exists in the Windows system32 folder.

It seems like i can't see "Enhanced Video Renderer (Custom Presenter)" if i went to Menu > Play > Filters.But i checked the dll file in it exists in system32 folder...
thank you.

Let see if re-registering that file solves it.

Right-click on Start button > Command Prompt (Administrator) > regsvr32 evr.dll