How to set an invisible password for Windows XP system

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Computer equipment hardware keeps falling with price “Royal machine” finally revives the glory through the upgrade, and also ran on dual systems (Windows XP and Windows 2000). Since the computer is placed in the dormitory, it naturally becomes a "public product", but there are many settings in the Windows 2000 system that do not want others to see it. What should I do? I can't set a password! I think about it, finally I thought of it. A great way, the author will introduce it below.
First, find the boot information file (Boot.ini). Since it is hidden, we can select “resource manager", select “folder" “View ” uncheck the "Hide Protected System Files" checkbox in the “ option, and tick "Show all files and folders" in “Hide files and folders> frame. This removes the hidden attribute, you can see the Boot.ini file in the C drive.
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)\\WINDOWS
[operating systems]
multi(0) Disk(0)rdisk(0)partition(2)\\WINDOWS="Windows XP" /fastdetect
c:\\="Windows 2000"
Here is a brief explanation, timeout=30 means booting When the menu is selected, the time taken to enter the default operating system when the user does not perform any operation after the boot menu is started. The default setting is 30 seconds, which can be changed at will. If it is changed to 0, then the selection will not appear. Menu, go directly to the default system (here is Windows XP), if I don't want others to enter my Windows 2000 system, then modify the Boot.ini file to achieve. First set the timeout to 2 seconds, then delete the Windows 2000 after the last line of the equal sign. When starting up, others will only see Windows XP and one line. Windows 2000 actually has it, just can't see it. Who can think that at this time, just press the down cursor button to enter 2000? Because the waiting time is only set to a short two seconds! In a blink of an eye, the system directly enters Windows XP.