Which update is it installing (has it completed yet?)
If it's installing Service Pack 1, this can take a few hours, depending on the state of your system - but any more than 3 hours would be highly unusual.
Computer type Laptop System Manufacturer/Model Number Asus K52F OS Win 7 x64 Home Premium (and x86 VirtualBox VM) CPU i3 370M Motherboard Asus Memory 8GB - finally :) Graphics Card it's an i3, dude! Sound Card onboard Monitor(s) Displays 15.6" built-in Screen Resolution 1366x768
PSU n/a Hard Drives 750GB Seagate internal
Sundry external drives attached to other computers on the local network Internet Speed as much as I can get - usually on a dongle, so <1Mb/s Antivirus MSE Browser IE10/Chrome/FF(if I must)
System Manufacturer/Model Number HP Pavilion Elite 495UK OS Windows 7 Ultimate SP1 64-Bit CPU Intel Core i7 870 @ 2.93GHz Motherboard MSI 2A9C (CPU1) Memory 8Gb Dual-Channel DDR3 @ 664MHz Graphics Card nVidia GeForce GTX 460 1024MB dedicated RAM Sound Card Realtek HD Audio Monitor(s) Displays HP2310i Screen Resolution 1920 x 1080
Keyboard Logitech K750 solar-powered keyboard Mouse Logitech Wireless M180 mouse PSU 460W Case HP Elite Cooling Air cooled Hard Drives 1x1954GB Hitachi HDS22020ALA 330 (RAID), 1x1954GB Hitachi External for backup and storage Internet Speed 2Mb Other Info Pure Avanti Flow Internet Radio with iPod Dock, 64Gb iPod, HP USB Speakers, Sony MDR-V500 Headphones, Sony Vaio F-Series Laptop
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Windows 7 64 Bit updates takes a long time. problems?