Member Avatar for sandeep_brow

i don`t known how to delete windows xp from my computer?i had just format my computer the day before yesterday and it shows the two windows option whenever start.

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This usually means the Windows Boot Manager still has an entry for the old install. Building on and , the safest approach is two steps: remove the extra boot entry first (so the machine boots straight to the Windows you want), then delete or reuse the old partition and, if necessary, repair the boot files.

Confirm and back up

  • Boot the copy of Windows you want to keep and confirm it is the running OS (Right‑click This PC/Computer -> Properties or check C:\Windows). Back up any personal files before changing partitions or boot settings.

Remove the extra boot menu entry (easy, GUI)

  • Run Win+R, type msconfig, go to the Boot tab, select the unwanted entry and click Delete. If that succeeds the other Windows choice will disappear at startup.

Remove the extra boot entry (command line)

  • If msconfig does not remove it, open an elevated Command Prompt and list entries, then delete the unwanted one:
bcdedit /v
bcdedit /delete {identifier} /f

Replace {identifier} with the exact GUID shown by bcdedit /v.

Delete the old partition and reclaim space

  • In Windows, open Disk Management (right‑click Start or run diskmgmt.msc), locate the partition used by the old Windows, move any data you need, then Delete Volume. After deletion, extend your primary partition or create a new volume.

Boot-repair notes (only if Windows fails to boot after partition changes)

  • Boot from installation media to Repair -> Command Prompt and run:
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

or

bcdboot C:\Windows

Cautions

  • Do not delete a partition labeled "System" or "System Reserved" until you know where the active boot files live. Always back up first. These steps remove the extra menu and let you reclaim space cleanly after a second-install left a leftover Windows option.

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Member Avatar for james.lu.75491856

I think you need to use BIOS
or you can just BIOS auto boot to a diffrent drive(There by using the OS on that drive)

Edited by james.lu.75491856
Member Avatar for JorgeM

When you installed the new OS, you needed to have deleted existing partitions. This option is a available in the early stages of the installation.

Otherwise, if you install to an additional partition, the result will be a multi-boot capable system.

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