Upgrading an old laptop (windows 7) with network issues

Solution 1:

I always had network errors like "The updates can't be downloaded"

when I tried to load a web page I had again a network error.

Try reinitialising the network states. Run the following commands in an elevated cmd shell:

• Reset WINSOCK entries to installation defaults:

  netsh winsock reset catalog

• Reset TCP/IP stack to installation defaults:

  netsh int ip reset reset.log

• Reset Firewall to installation defaults:

  netsh advfirewall reset

• Flush DNS resolver cache:

  ipconfig /flushdns

• Renew DNS client registration and refresh DHCP leases:

  ipconfig /registerdns

• Flush routing table (reboot required):

  route /f

Solution 2:

It seems like some installed product is blocking your access to some websites.

The likeliest product is your security software or anti-virus. Try to disable them and check again.

You may use Safe Mode with Network to update the computer.

You could also power-cycle your router to verify if it is the source of the problem .