Fragmentation doesn't matter if there's almost no disk activity. There's nothing in the Application Event Log; but, there's everything in the System Event Log (1,000-something such events):
Well, I had a PIII @ 733 MHz with 256 MiB RAM for years and it never froze; but, that was without Service Pack 3. It has a 20 GB hard drive. I just checked Task Manager and the CPU load is never 100%; yet, it keeps freezing constantly. The battery is completely dead; I have now removed it, but...
256 MiB. It's all in the specs, the link to which I posted previously. It might be upgraded to 512 MiB, but the additional module has to be a 256-MiB PC100 module. It has to be Windows XP, because it's not for me.
Its' speed is not the main problem: Windows keep freezing every few seconds for 1...
Solved. I placed two 8 - 9 mm planks beneath the laptop and now the temperature is usually 70-something °C. When I ran an AES, AES-Twofish, Serpent, AES-Twofish, Serpent-AES, Twofish-Serpent, AES-Twofish-Serpent, and Serpent-Twofish-AES encryption and decryption benchmark with TrueCrypt on 1 GiB...
I had 8 GiB of memory in my HP Pavilion dv7-4110em XE287EA#BED working at 1,066 MHz because one of the 2 4-GiB memory modules had a maximum frequency of 1,066 MHz. Yesterday, I replaced that module with a 4-GiB module which can work at 1,333 MHz. So, now my 8 GiB of memory works at 1,333 MHz...