Not connect to internet:Dependency group or service failed to start  

burp61 said:

do you think it will be easier if you do a remote control via team viewer?

What's your e-mail address?

burp61 said:

I am trying to replace the hiv file for dps however it shows access denied

is it supposed to be replaced to current control set or control set 001

Quite normal. Even administrators are not allowed to change them

burp61 said:

Only services not working now are performance logs and alert access, homegroup listening, windows firewall, and diagnostic policy services

All access denied?

This is the easiest way to (try to) fix it.
Repair Install
You must have a product key!

Windows 7 Ultimate SP1-U ISO
English x64: X17-59465.iso

burp61 said:

sfc/scannow gives errors

Did you see this in log?

Code:

2012-12-18 18:34:04, Info                  CSI    000002ea [SR] Verify complete
2012-12-18 18:34:04, Info                  CSI    000002eb [SR] Repairing 1 components
2012-12-18 18:34:04, Info                  CSI    000002ec [SR] Beginning Verify and Repair transaction
2012-12-18 18:34:04, Info                  CSI    000002ed Hashes for file member \??\C:\Windows\System32\nlasvc.dll do not match actual file [l:20{10}]"nlasvc.dll" :
  Found: {l:32 b:oCeuCONwWDFsAE150DgUn/niM8Hszh1nKrX+VcOys60=} Expected: {l:32 b:4j8ySRNVSiPNBD3SfUMFr2L0jAVhoPx7eBHlW3Sxvnk=}
2012-12-18 18:34:04, Info                  CSI    000002ee [SR] Repairing corrupted file [ml:520{260},l:46{23}]"\??\C:\Windows\System32"\[l:20{10}]"nlasvc.dll" from store
2012-12-18 18:34:04, Info                  CSI    000002ef Repair results created:
POQ 123 starts:
     0: Move File: Source = [l:192{96}]"\SystemRoot\WinSxS\Temp\PendingRenames\9007802a78ddcd01a8360000ac1d901c._0000000000000000.cdf-ms", Destination = [l:104{52}]"\SystemRoot\WinSxS\FileMaps\_0000000000000000.cdf-ms"
    1: Move File: Source = [l:162{81}]"\SystemRoot\WinSxS\Temp\PendingRenames\a12e802a78ddcd01a9360000ac1d901c.$$.cdf-ms", Destination = [l:74{37}]"\SystemRoot\WinSxS\FileMaps\$$.cdf-ms"
    2: Move File: Source = [l:214{107}]"\SystemRoot\WinSxS\Temp\PendingRenames\7ae5862a78ddcd01aa360000ac1d901c.$$_system32_21f9a9c4a2f8b514.cdf-ms", Destination = [l:126{63}]"\SystemRoot\WinSxS\FileMaps\$$_system32_21f9a9c4a2f8b514.cdf-ms"
    3: Hard Link File: Source = [l:228{114}]"\SystemRoot\WinSxS\amd64_microsoft-windows-nlasvc_31bf3856ad364e35_6.1.7601.17964_none_c575f33221b24ff7\nlasvc.dll", Destination = [l:68{34}]"\??\C:\Windows\System32\nlasvc.dll"
POQ 123 ends.

nlasvc.dll was corrupt, but is repaired now! that's why nlasvc works after reboot
Please run: sfc/scannow again. No errors anymore?

For the windows firewall service please try the fix it tool below you will have to be logged on as an administrator to run the tool and restart the computer after running the fix.

Diagnose and fix Windows Firewall service problems automatically

Also the Windows event log service is that running if it is not please try and start it and if it gives an error please post error?