Windows XP system automatically pops up a window which informs the user that the disk space is running low. Low disk space left is a probable cause of computer slowing down. The reason could be that the system is creating some temporary files on the hard disk and there’s no more space available.
I have observed that when the disk space runs low the computer is prone to hung ups and is very slow in responding to any request. Opening multiple software application window would take nearly a minute and worst it would sometime not respond. An error not responding is thrown. Having ample disk space to accommodate temporary files created by the system while running Windows XP would be necessary for better computer performance.
The computer files that would impact in freeing up disk space are those that have more than 100Mb in size. Thus, I search for them in the computer for possible deletion whenever necessary. I have found many files with File Extension DAT could at times eat up 1 GB of disk space. By deleting these large files I would immediately get the needed space for running smoothly my computer.
There are many large size files that lurks in the computer which takes a lot of disk space. Some computer program files have data files with File Extension DAT which is needed at run time or during installation. I have noted that files with DAT extension takes up space. Some of them contains temporary data which don’t have any impact even if deleted. There are some also that have very significant importance that when corrupted would cause the computer hang up.
An example of a DAT file is Ntuser.dat which is created by Windows XP system during user profile creation. The file size of ntuser.dat on a fresh installation of Windows XP is only about 256 Kb, but as time goes on the file grows in size up to even 9 GB or more. Thus, ntuser.dat file is a very good file candidate with File Extension DAT for deletion to free up system disk space. I tried deleting ntuser.dat and it seems there’s no adverse effect. A notable effect is Windows XP theme was reset to use the non-Windows XP default ordinary theme.
A special thing about ntuser.dat file is whenever it’s deleted there’s no need to worry as it is created back whenever the user logs into the system. A friendly note, if you’re thinking about deleting NTUSER.DAT.
DO NOT DELETE NTUSER.DAT as you’ll LOOSE your PROFILE SETTINGS
Remember NTUSER.DAT is a required system file and may cause your system to crash. It’s possible though to delete it, but DON’T BLAME me for anything. If you do not know what you’re doing then – DO NOT DELETE NTUSER.DAT.
If you want to test the effect then it’s important to backup NTUSER.DAT before doing anything on it or deleting it for disk space saving. There might be particular settings on your Windows XP which you might want back later. It’s better to be safe than to be sorry for lost data.