HKEY_CURRENT_USER\ Software\ Microsoft \ Windows\ CurrentVersion\ Explorer
Create a new DWORD value called ThumbnailSize, and set the value between 32 and 256.
And/or create another DWORD value called ThumbnailQuality, and set the value between 50 and 100.
Key Details :
USER Key: [HKEY_CURRENT_USER\ Software\ Microsoft \ Windows\ CurrentVersion\ Explorer]
Value Name: ThumbnailSize
Data Type: REG_DWORD (DWORD Value)
Data Value: 32 - 256
USER Key: [HKEY_CURRENT_USER\ Software\ Microsoft \ Windows\ CurrentVersion\ Explorer]
Value Name: ThumbnailQuality
Data Type: REG_DWORD (DWORD Value)
Data Value: 50 - 100
This clears the Page file when you power off the computer.
Restart Windows for these changes to take effect!
Browse to: HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Control \ Session Manager \ Memory Management
and add the DWORD variable "ClearPageFileAtShutdown"=dword:00000001
You can also do this without reg hacking.
Go to Control panel Administrative tools, local security policy. then go to local policies ---> security options.
Then change the option for "Shutdown: Clear Virtual Memory Pagefile"
Start Regedit
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\DisablePagingExecutive
Set the value to be 1
Reboot the computer
Look for the value named ProgramFilesDir. by default,this value will be C:\Program Files. Edit the value to any valid drive or folder and XP will use that new location as the default installation directory for new programs.