You will probably be told to use a more recent OS...
IIRC WinXP works fine with bitcoin core as long as the 64 bit version is used.
My computer is old, built by me many years ago, it runs WinXP SP3, Intel Core2 6600 @ 2.40GHz, 4gigs ram (OS reports 2.75, blame the old OS).
I read through the debug log but didn't see anything that stood out, but there's tons of crap there. Here's an excerpt from right before my OP, which was right around when my node went down:
-snip-
The log looks fine which suggests that the problem is related to your system and not the program itself. 2.75 gigs RAM shown suggests that you use a 32-bit OS, which is not able to allocate more memory without some serious (and possibly unsafe) kernel hacks. As Newar suggested -> do you have a chance to get a more recent OS or at least a 64 bit version? 32-bit Windows users have reported problems in the past, usually memory related. Others have reported that decreasing the dbcache might help. In order to change the cache settings create a config file[1] in the appropriate directory[2] and add the following lines to it:
# Set database cache size in megabytes (4 to 4096, default: 100)
dbcache=50
This might help, but the best solution IMHO is to go 64-bit. It allow your OS to use the full amount of memory the hardware provides. You are currently wasting >1Gig.
A little more detail exactly how I notice the crash. I get an email from Bitnodes that my node is down. I look at my computer screen, bitcoin core is minimized to my task bar; it appears to be running. When I mouse over the icon, the icon disappears - because the program stopped running a while ago when I got the email. Wonder if it has to do with minimize to task bar? I'll turn that off and see.
Thanks.
This is typical even for later Windows versions and I think I also have seen Linux do this. Its just not updating the taskbar unless it has to.
[1] example from the wiki ->
https://en.bitcoin.it/wiki/Running_Bitcoin#Sample_Bitcoin.conf[2] path ->
https://en.bitcoin.it/wiki/Running_Bitcoin#Bitcoin.conf_Configuration_FileI owe myself a new pc, this one has outlived its usefulness. For the time being I am stuck with 32 bit, hopefully by summer I'll have a new box. If this continues to happen regularly I will try the configuration option you suggested and see if that helps. Thanks.