Quote (Xasthur @ 25 Oct 2011 17:19)
Jak sprawić żeby komputer zaczął na nowo widzieć mi siódemkę? Miałem dwa systemy i przy uruchamianiu normalnie miałem możliwość wyboru systemu. Po formacie i reinstalce XP, ta możliwość znikła i komputer za każdym razem odpala XP.
1. In XP, download and install .Net Framework 2.0 (32-bit) verison or .Net Framework 2.0 (64-bit) version and EasyBCD for your 32-bit (x86) or 64-bit (x86) XP.
NOTE: In XP, Net Framework is required to be installed to run the free program EasyBCD.
2. Run EasyBCD.
NOTE: This is required to repair the Windows 7 boot file and add XP to the Windows Boot Manager list.
3. On the left side of EasyBCD, click on the Add New Entry button. (See screenshot below)
A) In the top section under Operating Systems, click on the Windows tab. (See screenshot below)
B ) To the right of Type, select Windows NT/2k/XP/2k3 from the drop down menu. (See screenshot below)
WARNING: Be sure to leave the Automatically detect correct drive box checked.
C) To the right of Name, you can leave the default Microsoft Windows XP as the name to be displayed in the Windows Boot Manager, or you can type whatever name you would like to have instead. (See screenshot below)
D) Click on the Add Entry button. (See screenshot below)

4. On the left side of EasyBCD, click on the Bootloader Setup button, select (dot) the Install the Windows Vista/7 bootloader to the MBR option, and click on the Write MBR button. (See screenshot below)

5. Close EasyBCD.
6. Restart the computer to have the option to boot from Microsoft Windows XP or Windows 7. (See screenshot below)

źródło:
http://www.sevenforums.com/tutorials/8057-dual-boot-installation-windows-7-xp.html/e sam używałem tej instrukcji przy instalacji win xp & 7 dual boot
This post was edited by EustachyMotyka on Oct 25 2011 11:09am