I've been getting CTD the moment the game starts loading (when the smoke on the starting screen appears).

The game will run out of system RAM quicker under a 32 bit OS as it can't possibly have more than about 2 GB to start with. Increasing use of the page file means increasing instability (after a point); this is the case with all software that is trying to use much more physical RAM than is available.

x64 won't necessarily increase performance... although it's a definite contributing factor.

It however will reduce CTDs considerably and has been proven to do so.

The reason CTDs are happening more and more frequently with users running 32bit windows is ... well it's 32bit windows... 4gb of total addressable memory... doesn't leave much for any other program.. specifically when the program is already large address aware..... makes that function irrelevant when your running 32bit windows without enabling PAE/3gb mode at the very least for windows which 99% of the 32bit users aren't likely to do. This is made worse by more and more users using 1gb or most recently I've seen 2gb and 3gb video cards in their system with a 32bit OS.... resulting in the OS itself running completely out of ram and being unable to start windows at all... which leaves the users scratching their head wondering why there new video card "doesn't appear to work" or why their system is running so terribly.

The only viable solution which has been proven over and over again to most likely resolve the problem is moving from the obsolete 32bit OS to 64bit. Granting skyrim the full 32bit 4gb limit ALL to itself... and everything typically runs peachy provided you don't end up exceeding 4gb usage for skyrim in 64bit.. because doesn't matter what you do, the program can't cope with more than it's 32bit limits are able to.

Yeah, I get random crashes ever since installing the texture pack...but more so, if I exit to the main menu, the game just closes...no error or anything. It just closes. Occasionally I'll be just running or doing something in-game, and the game just randomly closes itself. Again, no error at all. My FPS according to fraps is 40 average, with 31 fps low (if it has to load an area/scenery, it goes back to around 40 after a second) and 60 high.

System:

Geforce 260GTX 896MB
8gig DDR3 ram
i5 3.3 Ghz
Windows 7 64bit

Should be good enough...not the best these days, but it plays pretty much any game on max that has come out. Should be good enough for the texture pack, especially since I always get at least 40 fps on average.

less than a gig of VRAM could be an issue if using the highres textures.

I can load previous save games and play after the HRez pack install but whenever I try to fast travel I get CTD.

Specs:
Geforce 430 1GB RAM
Windows 7 32bit
4GB RAM
Quad-core processor

Also wanted to add that I have not installed any mods. I have been waiting until the CK came out so there shouldn't be any conflicts do to mods.

Perhaps the game is trying to load up too much in one big go? Honestly, I don't know.

I used Skyrim HD 4k textures just fine, which are much higher resolution than the DLC textures. Unless they are more optimized or something. I of course, removed it before using Bethesda's texture pack and made a clean install. So I don't currently have any mods, besides the dlc.

I thought I could play it too. I loaded a saved game, looked at my character, noted all the changes. But he was in a cave and I really didn't go anywhere else. So anyway I decided to start a new game from scratch, and got CtD every time during the cart ride (tried 3 times). Then I tired the save that's just before the CC, and it crashed as soon as the dragon started to attack. Unchecked the DLC files and all works fine again.

I installed the CK first (never started or tried the game) then the Hi-Rez pack which I left downloading all night because my internet connection is terrible. Got up this morning and the game was at the launch screen. I looked in the data files area and saw the Hi-Rez esp's were already check so I started the game. I didn't have very long to play and test it but I loaded my last save which was just outside a cave and was able to run around, talk to my companion, mount my horse and ride a short ways before I fast traveled, then CTD. I rebooted the PC loaded the same save and then tried to FT and got CTD. Tried loading another save and FT same thing.

the HD Pack is 3gb..... it loads in conjunction with the excisting pack and other mods if you have any..

so the amount of data being loaded is that much more.....

it's the combined loading of additional information that exceeds the typicall 32bit limits from the little bit of testing i'm finding.

also if you do not have at least 1gb of dedicated vram... it really does appear that your chances of CTD is quite a bit higher.

I've a 9600GT and a x1900xtx here as well with skyrim loaded. both have 512mb dedicated... however the common factors that determine if the game remains playable or crashes seem to point to one of 2 things.

Running 32bit version of windows.... be it xp/vista/7/windows 8

OR

Running out of Vram... low dedicated physical video memory unable to "hold" the necessary textures that are loaded.

Ugrids plays into this factor as it loads even more information overloading the already saturated memory.....

If you were using a higher ugrids just fine and then now experience a CTD after using hd texture pack.... i'd suggest dropping your ugrids... or disabling the hd pack via the data files option when you launch skyrim.

Ah I see. My ugrids was actually at 9 before I did a fresh install. I got 40 fps average with it on, but with the hd pack I had to leave it at 5.

Well, in any case...I think enough people are having problems with it (not just here, but on Steam forums as well), that Bethesda will probably optimize it some or "fix" whatever is causing the issue. That is, if it is a problem with the texture pack and not the persons PC.

Just want to clear this up. To my understanding, with 32bit OS if you have 1 GB of VRAM windows set aside this amount of system RAM. Does this happen also in 64bit OS?

It isn't setting aside system RAM; the VRAM is using up a Gig of the available 4 Gig of memory addresses before Windows gets a look in. 64 bit operating systems can address FAR more than 4 GB!

It is a console port, that's what is wrong with this game.

No.. not in the same way as what your understanding..

Windows 32bit has a limit of 4gb.... so all the internet components of the system... most noteably the Video Cards 1GB Vram, is first allocated.. meaning set aside..... so if all you can use is 4gb, 1gb is vram, that reduces the available ram to 3gb.....

Add another 1gb video card... and this reduces it to 2gb available ram. (simply put)

Windows 64bit has a limit of well.. an unbeleiveable amount of address space..... I number that if i mentioned really would have no meaning in comparison.. Windows still sets aside this value for vram... but it doesn't effect physical ram because the total slice of the pie with physical ram and vram and everything else is such a tiny slice of the pie.... barely even a sliver or measureable amount.... we simply have nothing to worry about, it has no effect... at all..

I have a 2GB video card and didn't lose any performance with the high res pack (still getting 40+ FPS). But it just crashes nonstop now. No error/message, just poof, closes.

32-bit OS though. I will agree this is probably why people are getting the CTDs.

I have 32-bit XP, 1 GB GPU RAM, 3.48 GB CPU RAM and repeated CTDs now with HD DLC. Had to disable it. May workaround this by disabling AA. Don't have the patience though to experiment.

I did have both Skyrim and Creation Kit quitting on launch, but as I found out, when I decided to disable FXAA Injector to check the new textures out, without any external enhancements, I forgot to remove d3d9.dll (which comes with both FXAA Injector and ENB series) and if let alone in there, it will cause, not just Skyrim, but any game, to crash in the very same manner. After removing it, they both launched properly.

Sounds like a separate issue. People in this thread are able to play for maybe a dozen seconds before crashing.

Only certain textures / situation caused my crashing. In particular the bandit camp in the middle of Falkreath.

Only got to play an hour. I crashed once when I hit quicksave. Reloaded and worked ok, but was stuttering like it used to a few patches ago.
Also, I saw a purple cheese wheel in Markarth...
*shivers*.

Are you basically saying that on a 32 bit O/S if you have 3 gig of RAM and a 1 gig vid card you are using the 32 bit limit?

Indeed.