For that you need a bootable CD of your operating system. A bootable CD means that your PC will boot with that CD rather than your harddrive.
CAUTION : You will format you PC completely and lose all installed data in installation drive.
Windows has some rudimentary volume management available under "Computer Management". You can access this by right-clicking on "My Computer" and selecting "Manage". When Computer Management opens, select "Storage-->Disk Management" in the left pane. You can right-click on the graphical representation of the volume that you want to change in the right pane and select from a menu of options.
while installing WINDOWS 7 OS format ur earlier partition and create a new partition for installing OS Hard disk C memory of 40GB. install OS in C partition. leave the remaining space as it is. after completed installization os OS, right click my computer------>click(MANAGE OPTION)------>in that click(DISK MANAGEMENT)------>it will display the available free space-------->right click(creat new partition)------>enter the disk memory for eg:20000MB for 20GB. click(CREATE)---->click(ok). ur new partition hard disk will be created. similarly u can create more partition.
Windows 8 built-in Disk Management has ability to delete volume. You can delete partitions on Windows 8 using its own Disk Management.
Right click the Start screen and you can open all apps, right click Computer and choose Manage, then you can open the Disk Management in Windows 8. Or you can start the cmd.exe in administrative mode! And enter the command "diskmgmt.msc" to open the Disk-Management in Windows 8.
Under Disk Management, you can right click the volume and select delete volume to delete any partitions you like (not including system partition).
Windows 8 partition software
Windows 8 built-in Disk Management has many limitations. It can't delete system partition, it can only extend volume when there is some unallocated space behind it, otherwise, the "Extend Volume" option is not available. Because Windows 8 built-in Disk Management doesn't provide "Move partiton" feature, so you have to seek Windows 8 partition magic alternative.
EaseUS Partition Master Free Edition, a comprehensive free hard disk partition manager and system optimization software for Windows-based administration, works well with Windows 8. It is free partition software supporting functions to delete partition in Windows 8. Besides, you have two options to resize Windows 8 partition: extend one and shrink another by "Resize/Move partition" feature or merge two partitions into one by "Merge partition."
Start -> control panel
now look toward the top right of that window. you should see a search bar. type "partition". the first result will point u to where u need 2 go
Insert your Windows CD or DVD and get to the part where it shows all your partitions and delete the Linux partitions. If you are unsure which one is your windows partition just make sure you don't delete or format any partition that is in the NTFS, or in the rare case a FAT32 format, as those would be your windows partitions.
You will need at least two partitions.
Disk Management
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yes you just simply make separate partitions.
Windows 1.0, 2.0, 3.0, 3.1, 95, 98, and ME can support a maximum of 26 drives or logical partitions. Windows NT 3.1, 3.5, 3.51, 4, 2000, XP, 2003, Vista, 2008, and 7 can support several thousand drives / partitions in a system.
Always should the drive be partitioned. As NTFS for Windows 7. You can edit partitions while installing Windows through the installation menu or command prompt, or in diskmanager after the operating system is installed.
back up everything, remove ALL the partitions, then recreate the partitions you want to keep
The minimum number of partitions needed to dual boot windows xp and windows vista is actually 2, one for each operating system. However, if your computer was bought and it already had one of those two systems preinstalled and with it a separate windows recovery partition as well as a system reserved partition, then your minimum in that case would be 4 priamry partitions (which also happens to be the maximum allowed if you are using strictly primary partitions. One way to have more than 4 primary partitions is to have one of those partitions become an extended partition which can in turn have as many partitions as you need. I hope that wasn't too confusing
Yes, you can do it, but firstly you have to install XP and Windows 7 must be installed afterwards. Moreover, you must create two partitions to install them.
No. Vista ruins all windows(non-vista) and RAIDed partitions.
You can remove password on Windows 7 after you sign in by going to control panel and then selecting user account and from there you will find an option to change or remove your password.