Purposely Corrupt Windows XP

I want to test my backup system by purposely corrupting my OS (Windows XP). My backup system is nothing but a secondary internal SATA hard drive that I periodically copy my data to.

My concern is that my backup disk will somehow become inaccessible in the event of an OS corruption. Is it possible for the Partition Table (or some other thing) of my backup disk to get screwed up by a corrupt OS? Here are some proposed ways to purposely corrupt my Windows XP operating system:

1) delete C:\WINDOWS\system32\Hall.dll more info: http://support.microsoft.com/default.aspx?scid=314477

2) delete C:\boot.ini

3) delete C:\WINDOWS\system32\secur32.dll

4) open the C:\WINDOWS\System32 folder, sort the files by Type, and select and delete at random any

5 .dll files If anyone can think of other options that could potentially make my secondary internal HDD inaccessible, please Le me know. Thanks in advance.