people here who have ran the game on a single core CPU have had atleast a geforce 7900/9600/8800 as they are way above the minimum requirements and can compensate. also the majority of people running it are on the very top end of the single core chips yet yours is considerable lower.

its no good saying some1 else has done it as differant people have compensated for bad hardware by having either the graphics/CPU well above the min requirements. but in your case both CPU and graphics are below requirements so you have nothing to compensate. in theory if you put a geforce 8800 or similar in your PC it probly would run on the single core.

Ok.... i do the thing were i go and go into my AC file and open it by the Direct X 9 ( I have XP) and it still wont start up. it does the exact same, it goes to the loading AC thing on my desktop, then it just goes away and nothing happens. its like it just cancels itself. i don't have the best CPU. it did say it did not meet the requirement but i would have thought it would at least let me play any ways

want help post a new topic and a full dxdiag.

Same Problem. I have played the game on this system before. My HDD is partitioned into C and F. I have installed the game on the F partition. I will uninstall and reattempt to install it on C to see if it makes any difference. Until then, I'd appreciate any help offered.

Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.080814-1236)
Language: English (Regional Setting: English)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 6000+, MMX, 3DNow (2 CPUs), ~3.0GHz
Memory: 3582MB RAM
Page File: 319MB used, 5150MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.5512 32bit Unicode

------------
DxDiag Notes
------------
DirectX Files Tab: No problems found.
Display Tab 1: No problems found. DirectDraw test results: All tests were successful. Direct3D 7 test results: All tests were successful. Direct3D 8 test results: All tests were successful. Direct3D 9 test results: All tests were successful.
Sound Tab 1: DirectSound test results: All tests were successful.
Music Tab: DirectMusic test results: All tests were successful.
Input Tab: No problems found.
Network Tab: No problems found. DirectPlay test results: All tests were successful.

--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (n/a)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (n/a)
DirectMusic: 0/5 (n/a)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

---------------
Display Devices
---------------
Card name: NVIDIA GeForce 7900 GT/GTO
Manufacturer: NVIDIA
Chip type: GeForce 7900 GTO
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0291&SUBSYS_042B10DE&REV_A1
Display Memory: 512.0 MB
Current Mode: 1680 x 1050 (32 bit) (60Hz)
Monitor: Plug and Play Monitor
Monitor Max Res: 1600,1200
Driver Name: nv4_disp.dll
Driver Version: 6.14.0011.8206 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 2/9/2009 13:18:00, 6185088 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: nv4_mini.sys
Mini VDD Date: 2/9/2009 13:18:00, 6307328 bytes
Device Identifier: {D7B71E3E-41D1-11CF-6053-202400C2CB35}
Vendor ID: 0x10DE
Device ID: 0x0291
SubSys ID: 0x042B10DE
Revision ID: 0x00A1
Revision ID: 0x00A1
Video Accel: ModeMPEG2_A ModeMPEG2_B ModeMPEG2_C ModeMPEG2_D ModeWMV9_B ModeWMV9_A
Deinterlace Caps: {6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(YV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
Registry: OK
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Enabled
DDraw Test Result: All tests were successful.
D3D7 Test Result: All tests were successful.
D3D8 Test Result: All tests were successful.
D3D9 Test Result: All tests were successful.

-------------
Sound Devices
-------------
Description: SB Audigy 2 ZS Audio [9C00]
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: PCI\VEN_1102&DEV_0004&SUBSYS_20021102&REV_04
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: ctaud2k.sys
Driver Version: 6.00.0001.1361 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 7/7/2008 10:31:10, 532376 bytes
Other Files:
Driver Provider: Creative
HW Accel Level: Full
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: Yes
EAX(tm) 2.0 Listen/Src: Yes, Yes
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
Registry: OK
Sound Test Result: All tests were successful.


I'll post more information if required.

I'm at a loss of trying to figure out what's wrong, let alone how I can fix it.

I installed AC and the patches without any problems, but then I tried to run the game. The title bar for the game and the border comes up, but a few seconds later a window pops up saying it has to close the program. Sometimes a black screen appears instead, but it just stays there.

Also, I went into my programs list, only to find no AC folder, or Ubisoft folder! What happened?!

Any help would be greatly appreciated, thank you!

I was having problems with my Assassin's Creed not loading or only loading 47% then exiting. I tried updating drivers and nothing seemed to work. Eventually I came across a post that said to disconnect from the internet. I never thought that would work but it did! I have a wireless connection with my laptop. I disconnected from the internet and the game started right up. I did change other things with drivers and such so I don't know if it was a combination of things but I tried running it after the drivers updated and it still didn't work.

So for everyone out there who has this problem, try disconnecting from the internet. Don't know if it has anything to do with the problem but it mine seems to work fine! Also make sure you have the correct requirements as I tried to play this on my desktop which has shader model 2 and 128 mb video memory and it did not work!