Got a virus - cleaned it out- computer would then only connect to internet in safe mode with networking but now won't connect at all

Hi, try this

The suspicion of possible errors in system files in Windows, it may be worth a try to run the "hidden" program that comes with just Windows.
System allows an administrator to scan all protected files to verify their versions.

If System File Checker discovers that a protected file has been overwritten, it retrieves the correct version from the cache folder (% Systemroot% \ System32 \ Dllcache) or source files for Windows installation, and replaces the incorrect file.

System File Checker also checks and filling up the cache folder. You must be logged on as an administrator or a member of the Administrators group to run System File Checker.

If the cache folder becomes damaged or unusable, you can use the sfc / scannow, sfc / Scanonce or sfc / scan boot to repair its contents.

To use SFC:

1) Press Start
2) Select Run ...
3) Enter: sfc / scannow and press OK
(Remember that there should be space after sfc)



More info about the System
Sfc [/ Scannow] [/ Scanonce] [/ Scan Boot] [/ Revert] [/ Purgecache] [/ Cache Size = x]

• / Scannow: Scans all protected system files immediately and replaces incorrect versions with correct Microsoft versions. This command may require access to source files for Windows installation.

• / Scanonce: Scans all protected system files once when you start the computer. This command may require access to source files for Windows installation when you start the computer. SfcScan DWORD value 2 in the following registry key when you run this command:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon

• / Boot Scan: Scans all protected system files every time you start your computer. This command may require access to source files for Windows installation every time you start your computer. SfcScan DWORD value of 1 in the following registry key when you run this command:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon

• / Revert: Restoring default scan setting (not scan protected files when you start your computer). The default cache size is not reset when you run this command. This command is equivalent to the / Enable switch in Windows 2000.

• / Purgecache: Purges the file cache and scans all protected system files immediately. This command may require access to source files for Windows installation.

• / Cache Size = x: Sets the file cache size to x megabytes (MB). Default cache size is 50 MB. This command requires that you restart the computer, and then run the command / purgecache to adjust the size of the cache on the disk. This command provides SfcQuota DWORD value of x in the following registry key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon