1, after all kinds of software and hardware are installed properly, XP rarely needs to update files. Delete the system backup file: Start → Run → sfc.exe/Purge Cache nearly 3xxM.
2. Delete the driver.cab file in the driver backup: %windows%\driver cache\i386 directory, usually this file is 76M.
3. I don't have the habit of reading help, so it is a kind of harm for me to put things in the %windows%\help directory, hehe. . . Kill them all, nearly 4xM.
4. Later, after upgrading, you will find that %windows%\ has many directories similar to $ ntuninstallq311889 $. Kill them all, 1x-3xM.
5. There happens to be win2000/server in the hard disk. By the way, point all the pagefile.sys files to one place: control panel → system → performance → advanced → virtual memory → change. Note that the key "Settings" will take effect.
6. Uninstall uncommon components: use Notepad to modify %windows%\inf\sysoc.inf, use the find/replace function, enter, hide in the find box, and replace all with blanks. In this way, all the "hiding" is removed. After saving the disk, run "Add-Remove Program", and you will see many more options in "Add/Remove Windows Components". Delete games, code watches and other unused things.
7. Except for methods not used under \windows\ime, 8xM. I reinstalled my zrm input method, hehe.
8. If the space is really tight, enabling the compression function of NTFS will also use 2x% less space, but I didn't do it.
9. Turning off system restore is a disaster for people like me who often download test software. Right-click My Computer on the desktop, select Properties, find System Restore, and select Turn off System Restore on all drives. Hehe, it can save space again.
10, there are several files, which are quite large and useless ... I forgot the name: (,the newly installed system can use the search function to find files larger than 50M, and it should be able to find them.
If you can follow the above process, your original XP of 1.4G can be completely reduced to below 800.
References:
I forgot where it came from.