A very complex LINQ expression

I recently wrote this method:

         //  The returned result is roughly aagp30pmdrvs56nk.          Public   String Getusbdisksnviadriveletter ( String  Strusbdiskdriveletter ){  VaR Searcher = New Managementobjectsearcher ( "  Select * From win32_logicaldisktopartition  "  );  Foreach (Managementobject DM In  Searcher. Get ()){  //  DM ["dependent"] is roughly \ JIANG-PC \ Root \ cimv2: win32_logicaldisk.deviceid = "H :"                  String Strdriveletter = getvalueinquotes (DM [ "  Dependent  "  ]. Tostring ());  If (Strdriveletter = Strusbdiskdriveletter ){  // DM ["antecedent"] is roughly \ JIANG-PC \ Root \ cimv2: win32_diskpartition.deviceid = "disk #1, partition #0"                      String [] Diskarray = getvalueinquotes (DM [ "  Antecedent  " ]. Tostring (). Split ( '  ,  '  );  String Drivenumber = diskarray [ 0 ]. Remove ( 0 , 6 ). Trim ();  VaR Disks = New Managementobjectsearcher ( "  Select * From win32_diskdrive  "  );  Foreach (Managementobject Disk In  Disks. Get ()){  //  Disk ["name"] is roughly \. \ physicaldrive1  // Disk ["interfacetype"] is roughly: USB                          If (Disk [ "  Name  " ]. Tostring () = ( "  \\\\. \ Physicaldrive  " + Drivenumber) & disk [ "  Interfacetype  " ]. Tostring () = "  USB  " ){  //  Disk ["pnpdeviceid"] is roughly: usbstor \ disk & ven_teclast & prod_coolflash (s) & rev_1100 \ aagp30pmdrvs56nk & 0                              Return Parseserialfromdeviceid (Disk [ "  Pnpdeviceid  "  ]. Tostring ());}}}}  Return   Null  ;} 

The resharper plug-in prompts me that this can be converted into a LINQ expression. How can I convert it? So after clicking it, it becomes:

        //  The returned result is roughly aagp30pmdrvs56nk.          Public   String Getusbdisksnviadriveletter ( String  Strusbdiskdriveletter ){  VaR Searcher = New Managementobjectsearcher ( "  Select * From win32_logicaldisktopartition  "  );  Return (From Managementobject DM In Searcher. Get () Let strdriveletter = getvalueinquotes (DM [ "  Dependent  " ]. Tostring ()) Where Strdriveletter = strusbdiskdriveletter Select Getvalueinquotes (DM [ "  Antecedent  " ]. Tostring (). Split ( '  ,  ' ) Into diskarraySelect Diskarray [ 0 ]. Remove ( 0 , 6 ). Trim () into drivenumber let disks = New Managementobjectsearcher ( "  Select * From win32_diskdrive  " ) From Managementobject Disk In Disks. Get () Where Disk [ "  Name " ]. Tostring () = ( "  \\\\. \ Physicaldrive  " + Drivenumber) & disk [ "  Interfacetype  " ]. Tostring () = "  USB  "   Select Parseserialfromdeviceid (Disk [ "  Pnpdeviceid  " ]. Tostring (). firstordefault ();} 

CodeIt seems to be much less. I thought it was another language, but frankly speaking, the readability is really poor ...... A long line.

It seems that resharper is too intelligent.