I guess I'm clueless. Been at this for days. I have managed to change my retail XP to OEM using oem changer. From RW Everything: Manufacturer - "MICRO-STAR INTERNATIONAL CO., LTD" Product Name - "MS-7211" Version - "4.1" BIOS Vendor - "Phoenix Technologies, LTD" BIOS Vension - " V3.5 " BIOS Type- Award BIOS /ACPI 1.0 But no Slic tables, says dump error slic tables not found ? When I run SLP check tool I get: E: HP & compaq oembios.cat crc-cd4e1902 E: no reliable under windows, tried in safe mode same result E: I used MSI-E0A0735C-Compressed oembios in changer is this the right file? What am I doing wrong? Thanks in advance. PS 2nd post, sorry posted wrong section.