Media Player Classic - No sound with anything.

Hey guys and girls.

I recently did an upgrade on my K-Lite codec pack from 995 to the most recent version, it said something along the lines of "You have an older version of k-lite install, you must uninstall to continue". Since then I can not get any sound working with any version; CCCP, K-lite, plain MPC-HC, (all different numbered versions of each, clean uninstalls each time); with any file type (MKV, OGM, MKA, AVI) or with any other splitters (FFMPEG, LAV, Haali etc). I tried VLC and that works fine, so I don't (about 80%) think it's a soundcard issue (I've tried uninstalling and using default windows audio drivers + using older versions of the realtek audio driver).

Extended computer specs: http://speccy.piriform.com/results/WdYtc2dFjaI2t4yageWdM2E

Attached is an image of it going through all possible audio switchers https://i.imgur.com/hW2d6qY.png
Containing errors along these lines:

Haali Media Splitter::Audio
ffdshow Audio Decoder::Out
ACM Wrapper::Output
Audio Switcher::Out

Media Type 0:
--------------------------
Audio: PCM 48000Hz stereo 1536kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 48000
nAvgBytesPerSec: 192000
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 80 bb 00 00 00 ee 02 00 04 00 10 00 ....€»...î......
0010: 00 00                                           ..


Media Type 1:
--------------------------
Audio: PCM 44100Hz stereo 1411kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 44100
nAvgBytesPerSec: 176400
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 44 ac 00 00 10 b1 02 00 04 00 10 00 ....D¬...±......
0010: 00 00                                           ..


Media Type 2:
--------------------------
Audio: PCM 44100Hz mono 705kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 44100
nAvgBytesPerSec: 88200
nBlockAlign: 2
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 44 ac 00 00 88 58 01 00 02 00 10 00 ....D¬..ˆX......
0010: 00 00                                           ..


Media Type 3:
--------------------------
Audio: PCM 44100Hz stereo 705kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 44100
nAvgBytesPerSec: 88200
nBlockAlign: 2
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 44 ac 00 00 88 58 01 00 02 00 08 00 ....D¬..ˆX......
0010: 00 00                                           ..


Media Type 4:
--------------------------
Audio: PCM 44100Hz mono 352kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 44100
nAvgBytesPerSec: 44100
nBlockAlign: 1
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 44 ac 00 00 44 ac 00 00 01 00 08 00 ....D¬..D¬......
0010: 00 00                                           ..


Media Type 5:
--------------------------
Audio: PCM 22050Hz stereo 705kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 22050
nAvgBytesPerSec: 88200
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 22 56 00 00 88 58 01 00 04 00 10 00 ...."V..ˆX......
0010: 00 00                                           ..


Media Type 6:
--------------------------
Audio: PCM 22050Hz mono 352kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 22050
nAvgBytesPerSec: 44100
nBlockAlign: 2
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 22 56 00 00 44 ac 00 00 02 00 10 00 ...."V..D¬......
0010: 00 00                                           ..


Media Type 7:
--------------------------
Audio: PCM 22050Hz stereo 352kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 22050
nAvgBytesPerSec: 44100
nBlockAlign: 2
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 22 56 00 00 44 ac 00 00 02 00 08 00 ...."V..D¬......
0010: 00 00                                           ..


Media Type 8:
--------------------------
Audio: PCM 22050Hz mono 176kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 22050
nAvgBytesPerSec: 22050
nBlockAlign: 1
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 22 56 00 00 22 56 00 00 01 00 08 00 ...."V.."V......
0010: 00 00                                           ..


Media Type 9:
--------------------------
Audio: PCM 11025Hz stereo 352kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 11025
nAvgBytesPerSec: 44100
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 11 2b 00 00 44 ac 00 00 04 00 10 00 .....+..D¬......
0010: 00 00                                           ..


Media Type 10:
--------------------------
Audio: PCM 11025Hz mono 176kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 11025
nAvgBytesPerSec: 22050
nBlockAlign: 2
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 11 2b 00 00 22 56 00 00 02 00 10 00 .....+.."V......
0010: 00 00                                           ..


Media Type 11:
--------------------------
Audio: PCM 11025Hz stereo 176kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 11025
nAvgBytesPerSec: 22050
nBlockAlign: 2
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 11 2b 00 00 22 56 00 00 02 00 08 00 .....+.."V......
0010: 00 00                                           ..


Media Type 12:
--------------------------
Audio: PCM 11025Hz mono 88kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 11025
nAvgBytesPerSec: 11025
nBlockAlign: 1
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 11 2b 00 00 11 2b 00 00 01 00 08 00 .....+...+......
0010: 00 00                                           ..


Media Type 13:
--------------------------
Audio: PCM 8000Hz stereo 256kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 8000
nAvgBytesPerSec: 32000
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 40 1f 00 00 00 7d 00 00 04 00 10 00 ....@....}......
0010: 00 00                                           ..


Media Type 14:
--------------------------
Audio: PCM 8000Hz mono 128kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 8000
nAvgBytesPerSec: 16000
nBlockAlign: 2
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 40 1f 00 00 80 3e 00 00 02 00 10 00 ....@...€>......
0010: 00 00                                           ..


Media Type 15:
--------------------------
Audio: PCM 8000Hz stereo 128kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 8000
nAvgBytesPerSec: 16000
nBlockAlign: 2
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 40 1f 00 00 80 3e 00 00 02 00 08 00 ....@...€>......
0010: 00 00                                           ..


Media Type 16:
--------------------------
Audio: PCM 8000Hz mono 64kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 8000
nAvgBytesPerSec: 8000
nBlockAlign: 1
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 40 1f 00 00 40 1f 00 00 01 00 08 00 ....@...@.......
0010: 00 00                                           ..


Media Type 17:
--------------------------
Audio: PCM 48000Hz stereo 1536kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 48000
nAvgBytesPerSec: 192000
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 80 bb 00 00 00 ee 02 00 04 00 10 00 ....€»...î......
0010: 00 00                                           ..


Media Type 18:
--------------------------
Audio: PCM 48000Hz mono 768kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 48000
nAvgBytesPerSec: 96000
nBlockAlign: 2
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 80 bb 00 00 00 77 01 00 02 00 10 00 ....€»...w......
0010: 00 00                                           ..


Media Type 19:
--------------------------
Audio: PCM 48000Hz stereo 768kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 48000
nAvgBytesPerSec: 96000
nBlockAlign: 2
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 80 bb 00 00 00 77 01 00 02 00 08 00 ....€»...w......
0010: 00 00                                           ..


Media Type 20:
--------------------------
Audio: PCM 48000Hz mono 384kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 48000
nAvgBytesPerSec: 48000
nBlockAlign: 1
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 80 bb 00 00 80 bb 00 00 01 00 08 00 ....€»..€»......
0010: 00 00                                           ..


Media Type 21:
--------------------------
Audio: PCM 32000Hz stereo 1024kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 32000
nAvgBytesPerSec: 128000
nBlockAlign: 4
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 00 7d 00 00 00 f4 01 00 04 00 10 00 .....}...ô......
0010: 00 00                                           ..


Media Type 22:
--------------------------
Audio: PCM 32000Hz mono 512kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 32000
nAvgBytesPerSec: 64000
nBlockAlign: 2
wBitsPerSample: 16
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 00 7d 00 00 00 fa 00 00 02 00 10 00 .....}...ú......
0010: 00 00                                           ..


Media Type 23:
--------------------------
Audio: PCM 32000Hz stereo 512kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 2
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 32000
nAvgBytesPerSec: 64000
nBlockAlign: 2
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 02 00 00 7d 00 00 00 fa 00 00 02 00 08 00 .....}...ú......
0010: 00 00                                           ..


Media Type 24:
--------------------------
Audio: PCM 32000Hz mono 256kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 18

WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 1
nSamplesPerSec: 32000
nAvgBytesPerSec: 32000
nBlockAlign: 1
wBitsPerSample: 8
cbSize: 0 (extra bytes)

pbFormat:
0000: 01 00 01 00 00 7d 00 00 00 7d 00 00 01 00 08 00 .....}...}......
0010: 00 00                                           ..

I notice that's a lot of errors for a single audio track MKV too. Any ideas? I'm no good with codec issues.

Sorry and thanks in advance. I love my walls of text.

Edit: Forgot to attach codec log: https://app.box.com/s/e2uolb77irdm9ou9faf6

The audio renderer is failing. That usually is caused by a problem with the audio driver. Since you already tried re-installing the Realtek driver, the issue might be with the Intel or NVidia driver. Those might have been changed automatically through Windows Update.

Also check if the correct audio device is selected as default:
Windows Control Panel > Hardware and Sound > Sound > Manage Audio devices

An option in MPC-HC that you can use for testing:
options > playback > audio renderer
(the system default one should work if the system is correctly configured and working properly)

This problem is completely unrelated to codecs, so you don't need to waste any more time trying out different splitters and decoders.

I'd like to thank you for your help, I tried what you said and it didn't work BUT it caused Windows to detect that my .net framework was corrupted after I closed MPC-HC and needed to be repaired (also used sfc /scannow before I started and it said everything was fine). It all works now. Absolutely weird.