Some programs unresponsible after certain file operations

I don't remember but I think not. Today I disabled Security Center but the problem persists longer. This is the list of runnings services:

Code:

Status   Name               DisplayName                           
------   ----               -----------                           
Running  AeLookupSvc        Funkčnost aplikací                    
Running  ASLDRService       ASLDR Service                         
Running  AtherosSvc         AtherosSvc                            
Running  ATKGFNEXSrv        ATKGFNEX Service                      
Running  AudioEndpointBu... Koncové vytváření služby Windows Audio
Running  AudioSrv           Zvuk systému Windows                  
Running  Autodesk Conten... Autodesk Content Service              
Running  BFE                Služba BFE (Base Filtering Engine)    
Running  BITS               Služba inteligentního přenosu na po...
Running  bthserv            Služba pro podporu technologie Blue...
Running  cmdAgent           COMODO Internet Security Helper Ser...
Running  CryptSvc           Šifrování                             
Running  CscService         Offline soubory                       
Running  DcomLaunch         Spouštěč procesů serveru DCOM         
Running  Dhcp               Klient DHCP                           
Running  DirMngr            DirMngr                               
Running  Dnscache           Klient DNS                            
Running  DPS                Služba DPS (Diagnostic Policy Service)
Running  EapHost            Protokol EAP (Extensible Authentica...
Running  EFS                Systém souborů EFS (Encrypting File...
Running  eventlog           Protokol událostí systému Windows     
Running  EventSystem        Systém událostí COM+                  
Running  FDResPub           Publikování prostředků rozpoznávání...
Running  FontCache          Mezipaměť písem Windows               
Running  gpsvc              Klient zásad skupiny                  
Running  hidserv            Přístup k zařízením standardu HID     
Running  IKEEXT             Služba IKE and AuthIP IPsec Keying ...
Running  iphlpsvc           Pomocná služba protokolu IP           
Running  KeyIso             Izolace klíče CNG                     
Running  LanmanServer       Server                                
Running  LanmanWorkstation  Pracovní stanice                      
Running  lmhosts            Podpora rozhraní NetBIOS nad protok...
Running  MMCSS              Služba Plánovač multimédií            
Running  Netman             Síťová připojení                      
Running  netprofm           Služba seznamu sítí                   
Running  NlaSvc             Sledování umístění v síti (NLA)       
Running  nsi                Služba rozhraní síťového úložiště     
Running  nvsvc              NVIDIA Display Driver Service         
Running  nvUpdatusService   NVIDIA Update Service Daemon          
Running  osppsvc            Office Software Protection Platform   
Running  PcaSvc             Program Compatibility Assistant Ser...
Running  PDAgent            PDAgent                               
Running  PDEngine           PDEngine                              
Running  PGP RDD Service    PGP RDD Service                       
Running  PGPserv            PGPserv                               
Running  PlugPlay           Plug and Play                         
Running  PolicyAgent        Agent zásad protokolu IPsec           
Running  Power              Napájení                              
Running  ProfSvc            Služba Profil uživatele               
Running  PSI_SVC_2          Protexis Licensing V2                 
Running  RpcEptMapper       Mapovač koncových bodů protokolu RPC  
Running  RpcSs              Vzdálené volání procedur (RPC)        
Running  SamSs              Správce zabezpečení účtů              
Running  SENS               Služba oznamování událostí systému    
Running  ShellHWDetection   Rozpoznávání hardwaru                 
Running  Schedule           Plánovač úloh                         
Running  spmgr              spmgr                                 
Running  Spooler            Služba zařazování tisku               
Running  SSDPSRV            SSDP Discovery                        
Running  SysMain            Superfetch                            
Running  Themes             Motivy                                
Running  TrkWks             Klient služby Sledování distribuova...
Running  UI0Detect          Zjišťování interaktivních služeb      
Running  UxSms              Správce relací správce oken plochy    
Running  WDDMService        WDDMService                           
Running  WdiServiceHost     Hostitel diagnostické služby          
Running  WinHttpAutoProx... Služba WinHTTP WPAD                   
Running  Winmgmt            Služba WMI                            
Running  Wlansvc            Automatická konfigurace sítě WLAN     
Running  wuauserv           Windows Update                        
Running  wudfsvc            Platforma WDF (Windows Driver Found...

Noone other ideas?
I see the long delay also when in File Open dialog invoke the icon view menu, it takes almost 1 minute before the menu shows. I think all these probs have common source.

Process Explorer will show you what is happening to cause the delay.
Far better than Windows Task Manager.
Process Explorer

SysInternals have many tools and a user support forum that may give further advice.

I know ProcExp very well but don't know what it should show me about this.
But thanks for mentioning Sysinternals forum, I'll try to ask there.

It shows what is using processor cycles.
Windows Task Manager could see nothing when my system suffered big hang-ups.
It saw Comodo CFP.EXE and CMDAGENT.EXE but not their CPU usage
(though normally it did see such things.)

Process Explorer could see these things and I could observe continuously updated graphs showing how CMDAGENT.EXE and CSCRIPT.EXE were using the CPU cycles.
The graphs showed what happened when I was not looking, and how it related to other things happening at the same time.
So much better than watching 40 or more numbers simultaneously updating in real-time.

Alan

That's unfortunatelly not this case, the applications I mentioned don't make any high CPU usage.

What does Process Explorer show as consuming processor cycles ?
If you click on the CPU column so the biggest consumers are at the top,
you probably have System Idle Process at the top,
are there any peculiarities in what is shown below this at the time you are waiting for action ?

Check Event Viewer System Log for Disk (usually 11) or NTFS (usually 55) events.

You may have bad blocks on your disk.