Please help with APPCRASH

hi guys i hope you can help me up with this

yesterday i made a windows upgrade and ever since when i try to open a secondary hard drive Windows Explorer crashes and gives me this error code:

Problem signature:
Problem Event Name: APPCRASH
Application Name: explorer.exe
Application Version: 6.0.6002.18005
Application Timestamp: 49e01da5
Fault Module Name: mc_demux_mp4_ds.ax
Fault Module Version: 8.5.0.14265
Fault Module Timestamp: 4b81cf98
Exception Code: c0000005
Exception Offset: 000165c6
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: 40d4
Additional Information 2: 4062ad41ec8067256aa4c5e2b56d3c79
Additional Information 3: 40d4
Additional Information 4: 4062ad41ec8067256aa4c5e2b56d3c79
3 answers Last reply
More about please appcrash
  1. 1) what type of "Upgrade" did you make?

    2)Could be spyware or.......

    mc_demux_mp4_ds.ax that was accidentally removed is required by another program or the operating system.

    mc_demux_mp4_ds.ax is overwritten by its old version after the installation of a new program.

    mc_demux_mp4_ds.ax is likely to be broken by an uncompleted installation of a program which left corrupted files and entries.

    A malicious program deleted the mc_demux_mp4_ds.ax file or an associated file without your knowledge.

    A bad hard disk drive which contains corrupt data can the make the mc_demux_mp4_ds.ax becomes unavailable.
  2. sorry i meant update.. it is set to automatic so i dont really know what it was

    im doing a spyware scan with spybot S&D and afterwards will scan with AVG

    i hope it works

    any chance a windows restore will fix this?
  3. GO to WiIndows Update (type Windows Update in the search box and select it under programs) -- that will open the control Panel - Windows Update window - on the left hand side select view update history and see what it lists as the latest updates -- If there is a recent update to Windows Explorer it may have installed improperly - Using System restore and setting back to a time prior to the installation of the update might fix things up.
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