Winlogon.exe is corrupted when starting XP

Q: I am using Windows XP. When I booted into the system desktop after booting, I always prompted on the screen that the Winlogon.exe file is corrupted. The file or directory \\Winodws\\Debug\\UserMode \\userenv.log is corrupted and Unable to read. Please run the Chkdsk tool. ” But I can't find this Chkdsk tool in the system. What should I do?
A: The Chkdsk tool is a command to check the current state of the disk. It can display the disk status, memory status and the number of discrete files specified in the specified path and has certain repair functions. You can use the mouse to select “Start →Run" on the system desktop, type Chkdsk in the pop-up window and press Enter to run the Chkdsk tool, which will automatically verify the file and convert the missing link into a file. .