Sito Microsoft non risponde (WTH?!)

Ho sto errore stranissimo: non mi va in NESSUN sito di microsoft e associati, non capisco perchè (ho provato IE, FF, Chrome nulla).
Sugli altri pc va benissimo, questo l'ho riaperto ora dopo anni causa primo pc esploso e a riparare.

Se tento di scaricare i vari net da altri server e li installo mi si blocca dicendo di non poter contattare i siti e facendo partire un aggiornamento automatico mi da questo wall text di errore:

Spoiler

The following properties have been set:
Property: [AdminUser] = true {boolean}
Property: [ProcessorArchitecture] = Intel {string}
Property: [VersionNT] = 5.1.2 {version}
Running checks for package 'Windows Installer 3.1', phase BuildList
The following properties have been set for package 'Windows Installer 3.1':
Running checks for command 'WindowsInstaller3_1\WindowsInstaller-KB893803-v2-x86.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsi' and value '3.1': true
Result of checks for command 'WindowsInstaller3_1\WindowsInstaller-KB893803-v2-x86.exe' is 'Bypass'
'Windows Installer 3.1' RunCheck result: No Install Needed
Running checks for package '.NET Framework 3.5', phase BuildList
Reading value 'Install' of registry key 'HKLM\Software\Microsoft\NET Framework Setup\NDP\v3.5\1033'
Unable to read registry value
Not setting value for property 'DotNet35InstallSuccess'
The following properties have been set for package '.NET Framework 3.5':
Running checks for command 'DotNetFX35\dotNetFx35setup.exe'
Skipping ByPassIf because Property 'DotNet35InstallSuccess' was not defined
Result of running operator 'ValueEqualTo' on property 'AdminUser' and value 'false': false
Result of running operator 'ValueExists' on property 'Version9x': false
Result of running operator 'VersionLessThan' on property 'VersionNT' and value '5.1.2': false
Result of running operator 'VersionEqualTo' on property 'VersionNT' and value '5.2.0': false
Result of running operator 'ValueEqualTo' on property 'ProcessorArchitecture' and value 'IA64': false
Result of checks for command 'DotNetFX35\dotNetFx35setup.exe' is 'Install'
'.NET Framework 3.5' RunCheck result: Install Needed
Running checks for package 'Microsoft XNA Framework Redistributable 3.1', phase BuildList
Reading value 'ProductVersion' of registry key 'HKLM\Software\Microsoft\XNA\Framework\v3.1'
Unable to read registry value
Not setting value for property 'XNAFX31_IS_INSTALLED'
The following properties have been set for package 'Microsoft XNA Framework Redistributable 3.1':
Running checks for command 'XnaFxRedist31\xnafx31_redist.msi'
Skipping ByPassIf because Property 'XNAFX31_IS_INSTALLED' was not defined
Result of running operator 'ValueNotEqualTo' on property 'AdminUser' and value 'True': false
Result of running operator 'ValueExists' on property 'Version9x': false
Result of running operator 'VersionLessThan' on property 'VersionNT' and value '5.1.2': false
Result of checks for command 'XnaFxRedist31\xnafx31_redist.msi' is 'Install'
'Microsoft XNA Framework Redistributable 3.1' RunCheck result: Install Needed
EULA for components '.NET Framework 3.5' was accepted.
EULA for components 'Microsoft XNA Framework Redistributable 3.1' was accepted.
Copying files to temporary directory "C:\DOCUME~1\XP\IMPOST~1\Temp\VSD3F.tmp\"
Downloading files to "C:\DOCUME~1\XP\IMPOST~1\Temp\VSD3F.tmp\"
(30/12/2010 20.15.04) Downloading 'DotNetFX35\dotNetFx35setup.exe' from 'http://go.microsoft.com/fwlink/?LinkId=97964' to 'C:\DOCUME~1\XP\IMPOST~1\Temp\VSD3F.tmp\'
Download completed at 30/12/2010 20.15.05
Downloading failed with HRESULT=-2146697211
(30/12/2010 20.15.07) Downloading 'DotNetFX35\dotNetFx35setup.exe' from 'http://go.microsoft.com/fwlink/?LinkId=97964' to 'C:\DOCUME~1\XP\IMPOST~1\Temp\VSD3F.tmp\'
Download completed at 30/12/2010 20.15.07
Downloading failed with HRESULT=-2146697211
(30/12/2010 20.15.07) Downloading 'DotNetFX35\dotNetFx35setup.exe' from 'http://go.microsoft.com/fwlink/?LinkId=97964' to 'C:\DOCUME~1\XP\IMPOST~1\Temp\VSD3F.tmp\'
Download completed at 30/12/2010 20.15.07
Downloading failed with HRESULT=-2146697211
(30/12/2010 20.15.08) Downloading 'DotNetFX35\dotNetFx35setup.exe' from 'http://go.microsoft.com/fwlink/?LinkId=97964' to 'C:\DOCUME~1\XP\IMPOST~1\Temp\VSD3F.tmp\'
Download completed at 30/12/2010 20.15.08
Downloading failed with HRESULT=-2146697211

Ho fatto scandisk con Ad-Aware, Nod32, Trojan Remover e SUPERantispyware ma non ha trovato nulla -_-"

Qualcuno ha una qualche minima idea di come fixare?

Ho provato anche a flushare i dns ma nulla, ho letto in giro che si dovrebbe fixare disattivando i dns ma non ne sicuro e Ercos ha detto che esplode tutto (ho fastweb)

Help meh! ç_ç