well personally i think defraging is overrated. I dont see how all the extra stress you're applying to the hdd is worth the minimal performance gain. Like Andromeda43 I use imaging software for my root partition so i never care about how fragmented that gets. I restore it probably once everyweek or other week and it only takes about 2 minutes for the whole process. My other partitions have larger clusters sizes (16kb) so they fragment considerably slower anyway.
I know this is extremely late but I just had the same issue. I apoligize if this has been documented elsewhere. I've searched a little and found nothing else about the cause. (display properties>settings>advanced>general>DPI setting) I believe its caused by the remove extra fonts option. Custom DPI settings seem to depend on the fonts from these files 8514FIX.FO_ 8514OEM.FO_ 8514SYS.FO_ CGA40WOA.FO_ CGA80WOA.FO_ COURF.FO_ DOSAPP.FO_ EGA40WOA.FO_ EGA80WOA.FO_ SERIFF.FO_ SMALLF.FO_ SSERIFF.FO_
Tarun you should try to click on the "[#]" in wikipedia or look at the 'Notes' section it will take you to the external references but lets try to stay on topic ok
nice post crahak you essentially said everything i was just going to [edit in response to jeremy's edit in the above post] i think you need to read about what MemUsage actually is, I've said it 3 times in this thread alone.
if only you knew the power of the extensions. BTW I believe this information is valid: MemUsage in Taskmanager = "Working Set" which is not an accurate measurement of real memory usage. VMSize in Taskmanager = "Private Bytes" which is more accurate measurement of real memory usage. Firefox does not trim its working set when minimized by default. BTW I run with no Paging File; Virtual Memory = 0!