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Win 7 Ppt
OVERVIEW OF BASIC CONCEPTS FOR WORKING WITH WINDOWS 7

Senthil

This bookgives you reference about overview of basic concept for working with windows 7. The contents given are

 Booting Process of Windows 7  Windows 7 Architecture  Editions of Windows 7  Installing windows 7  Automated Installation of windows 7  Managing Disk  Practical Concepts of windows 7  Shortcuts for Windows 7 and its Tools  Maintenance and Monitoring Windows 7  Backups & Recovery

WINDOWS 7 OVERVIEW
Booting Process of Windows 7: Power on the machine ->POST ( checks all devices connectivity ) -> Runs BIOS from ROM >MBR ( master boot record) ->BOOTMGR (boot manager) ->BCD (boot configuration data store) ->WINLOAD.EXE ->NTOSKERNL.EXE ->SMSS.EXE ( session manager server services) ->SAM ( security account manager) ->LSASS.EXE ( local security Authentication server services ) Explanation of booting process: Once the machine is turned on POST occurs and BIOS runs from ROM and sends the instructions to from processor to primary memory and from primary memory takes it to secondary memory where it initiates to MBR simply known as master boot record. In a clean Hard Drive if u get installed Windows 7 the MBR is created in first sector of a Hard drive. Size of an MBR is 512 bytes. First 446 bytes contains Boot Strap Code, next 64 bytes reserved for Partition Table. To write an entry in partition table it consumes 16 bytes of memory, so maximum 4 entries can be written. Remaining 2 bytes consists of Boot signature or magical codes Boot manager which will contain the necessary file for booting. The partition contains bootmgr is known as ACTIVE partition. BCD is a boot configuration data store which contains the records of Operating System present in a Hard Drive and its path. A WINLOAD.exe loads the selected operating system from BCD and its control goes to NTOSKERNL.EXE is considered as neural system and heart of an OS. Abbreviated as Knowledge Extraction and Retirement by Neural

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