For a while now I have tried to install SP1 for Windows 7, and every time I get this error message. I have tried troubleshooting with the system readiness tool, resetting windows update history, updating in safe mode and so on. Nothing seems to work, please help 

My Computer
At a glance
Windows 7 Home Premium 64bit4GB RamATI Radeon HD 5700 series
- OS
- Windows 7 Home Premium 64bit
- Motherboard
- Asus
- Memory
- 4GB Ram
- Graphics Card(s)
- ATI Radeon HD 5700 series
- Sound Card
- VIA HD audio
- Monitor(s) Displays
- Acer
- Hard Drives
- 1TB HDD
- Case
- Thermaltake
- Cooling
- V8 Cooler Master