Ok, there's no particular IE errors, possibly cause I use FF most of the time. There also isn't many errors that have occured overall. Maybe those will give you an indication on what's going on:
Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.
The program Rundll32.exe version 6.1.7000.0 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Problem Reports and Solutions control panel.
Process ID: 858
Activation context generation failed for "C:\Windows\WinSxS\x86_microsoft.vc80.mfc_1fc8b3b9a1e18e3b_8.0.50727.42_none_d6c3e7af9bae13a2\MFC80U.DLL". Dependent Assembly Microsoft.VC80.MFCLOC,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="8.0.50608.0" could not be found. Please use sxstrace.exe for detailed diagnosis.
But tbh I don't see any of those having anything to do with the system freezing.
There's also this one that I just found in Administrative Events, occuring quite often, which might
be the cause of system shutdown.
Your computer was not assigned an address from the network (by the DHCP Server) for the Network Card with network address 0x0015AF162D21. The following error occurred: 0x79. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.
Message after this error:
The previous system shutdown at 21:52:03 on 25/01/2009 was unexpected.
And another one:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
I know what you're going to say, update your network card drivers. The thing is, that was the first thing I did after installing Win 7. So any other ideas?