NTFS vs FAT

Criteria	NTFS5	NTFS	FAT32	FAT16	FAT12
Operting System	Windows 2000 Windows XP Windows 2003 Server	Windows NT Windows 2000 Windows XP Windows 2003 Server	DOS v7 and higher Windows 98 Windows ME Windows 2000 Windows XP	DOS All versions of Microsoft Windows	DOS All versions of Microsoft Windows
Limitations
Max Volume Size	2TB	2TB	32GB for all OS. 2TB for some OS	2GB for all OS. 4GB for some OS	16MB
Max Files on Volume	Nearly Unlimited	Nearly Unlimited	4194304	65536
Max File Size	Limit Only by Volume Size	Limit Only by Volume Size	4GB minus 2 Bytes	2GB (Limit Only by Volume Size)	16MB (Limit Only by Volume Size)
Max Clusters Number	Nearly Unlimited	Nearly Unlimited	4177918	65520	4080
Max File Name Length	Up to 255	Up to 255	Up to 255	Standard - 8.3 Extended - up to 255	Up to 254
File System Features
Unicode File Names	Unicode Character Set	Unicode Character Set	System Character Set	System Character Set	System Character Set
System Records Mirror	MFT Mirror File	MFT Mirror File	Second Copy of FAT	Second Copy of FAT	Second Copy of FAT
Boot Sector Location	First and Last Sectors	First and Last Sectors	First Sector and Copy in Sector #6	First Sector	First Sector
File Attributes	Standard and Custom	Standard and Custom	Standard Set	Standard Set	Standard Set
Alternate Streams	Yes	Yes	No	No	No
Compression	Yes	Yes	No	No	No
Encryption	Yes	No	No	No	No
Object Permissions	Yes	Yes	No	No	No
Disk Quotas	Yes	No	No	No	No
Sparse Files	Yes	No	No	No	No
Reparse Points	Yes	No	No	No	No
Volume Mount Points	Yes	No	No	No	No
Overall Performance
Built-In Security	Yes	Yes	No	No	No
Recoverability	Yes	Yes	No	No	No
Performance	Low on small volumes High on Large	Low on small volumes High on Large	High on small volumes Low on large	Highest on small volumes Low on large	High
Disk Space Economy	Max	Max	Average	Minimal on large volumes	Max
Fault Tolerance	Max	Max	Minimal	Average	Average

Enable / Disable Task Manager in Windows XP

• Click Start
• Click Run
• Enter gpedit.msc in the Open box and click OK
• In the Group Policy settings window
  • Select User Configuration
  • Select Administrative Templates
  • Select System
  • Select Ctrl+Alt+Delete options
  • Select Remove Task Manager
  • Double-click the Remove Task Manager option

or you can set by expert way

Hive: HKEY_CURRENT_USER
Key: Software\Microsoft\Windows\CurrentVersion\Policies\System
Name: DisableTaskMgr
Type: REG_DWORD
Value: 1=Enablethis key, that is DISABLE TaskManager
Value: 0=Disablethis key, that is Don't Disable, Enable TaskManager