Friends, i have System Model HP xw4400 Workstation System Type X86-based PC Processor x86 Family 6 Model 15 Stepping 6 GenuineIntel ~2400 Mhz BIOS Version/Date Hewlett-Packard 786D7 v02.07, SMBIOS Version 2.4 Intel (R) Core (TM)2 CPU 6600 @2.40GHz 2.40GHz, 2.00GB of Ram Plz Help me when i start installing win 7 on my Pc the error came no driver found and installation stops. When i chk Hp web site there is written this pc is for Win xp win vista only and also there were only drivers for xp and vista PLZ help how to install windows 7 on hp xw4400 workstation. Dear Cristi72 U mean to say i have to remove my Sata hard and bring IDE hard to Instal win 7? And one thing i have updated bios but still win 7 not start No, you will use the same SATA HDD; the SATA ports can run in native mode (SATA, AHCI - for best performance), in IDE mode (ATA, Compatibility, Legacy - slower speeds, but compatible with most OSes), or in RAID mode (when use an array of HDDs). So you must check in BIOS what settings the SATA ports have and try to run them in IDE mode.

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One more thing: when installing Win7, have you performed a clean install (by formatting the HDD) or an upgrade from XP/Vista? Hp Usb Disk Storage Format Tool Free Download Cnet. Cristi i have bought this pc with windows Xp profesional pack 3 and it have 2 partition C for windows and D for other files total HDD is 160 Gb i have not format the HDD before right now there is windows Xp profesional pack 3 installed so what i have to do now? On Hp web site there is written this pc hp xw4400 workstation is for Win xp win vista only and there is also no driver for hp xw4400 workstation any how if I get succeed installing win 7 then there is another problem how to get drivers? Plz guide me properly sir i shall be very thank full to u.

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If good then which version is best in Vista? You could install a trial version of Win7 on the D partition (when installing, use the CUSTOM setting and pick the D partition for installing, just be sure you have at least 15GB free space on it) and, if it works (having all drivers and such), buy a legit Win version. Firstly though you must change in BIOS the SATA setting from RAID-AHCI to ATA-IDE (press F10 upon boot, goto STORAGE -->STORAGE OPTIONS -->SATA Emulation -->IDE setting. If you cannot install Win7, Win 8.1 will not work either, as it needs an UEFI BIOS for its full potential and will not have the software support for such old motherboards as yours. Vista is actually a decent OS, but you must perform some additional steps in order to work properly: I don't recommend you to make an upgrade, go for a clean install.