Directly modify the hard disk partition capacity under XP

When using XP, have you ever been troubled by an less-than-ideal partition? Have you reinstalled the system because of this? Have you searched everywhere for software for the same reason? Actually, none of these are necessary. As long as it's not the C drive (the system drive), everything can be resolved under XP. This method can solve the issue of insufficient hard drive partition capacity that arises during the use of some software.