I too have the same issue. When attempting to upgrade from Windows 8 to 8.1 I get this, "There isn't enough memory available to create a ramdisk device. Error Code 0xc0000017.
PROCESSOR: Intel Core 2 Extreme QX9650 Yorkfield 3.0GHz 12MB L2 Cache LGA 775 130W Quad-Core Processor - Retail
MOTHER BOARD: eVGA 132-CK-NF78-A1 LGA775 Motherboard, nForce 780i SLI Chipset
MEMORY: Corsair Dominator 4GB (4 x 1GB) DDR2 SDRAM Desktop Memory TWIN2X2048-8500C5D, DDR2 1066 (PC2 8500), 240-Pin, SLI Certified.
HARD DRIVE: Western Digital Raptor WD1500ADFD 150GB 10,000 RPM 16MB Cache Serial ATA150 Hard Drive (RAID 0 Striped Drives)
VIDEO CARD: eVGA 768-P2-N831-AR GeForce 8800GTX 768MB 384-bit GDDR3 PCI Express x16 HDCP Video Card
SOUND CARD: on-board