Just compile your project again with plateform option x86.
If you use "Any CPU" then it will detect the plateform and try to run the application accordingly.
In 64 Bit, this provider is not available or not registered.
So, You need to compile your project for specific plateform x86.
Because, x64 OS comes with backward compatibality.
Now if you compile with x86 option then OS will provide all the services as 32 bit.
For more clarification You can go through with this thread
Microsoft.Jet.OLEDB.4.0 provider problem
Microsoft.Jet.OLEDB.4.0 provider problem (Article-2)