Symptom:

You may find you cannot connect to any website or online service with a metro app, it fails due to proxy settings. If opening up the desktop version of IE it reads the proxy settings and connects properly. However, the metro IE or other metro apps fail to connect to the internet unless unchecking the "use a proxy server for your LAN" checkbox via Desktop version IE.

Resolutions:

A few things you can try:

1:

Step1.  Open "Local Group Policy Editor"

Step2.  Navigate to "Computer Configuration - Administrative Templates - Network Isolation"

Step3.  Open "Internet Proxy Servers for Metro Style Apps" and set the value to your proxy server address like 172.16.0.1:8080.

2:

Step1.  If you are logging in with a windows live ID, then go to the Desktop IE, authenticate with the proxy.

Step2.  Check “remember my settings”. Then all metro apps will work fine.

3:

Step1. Open regedit.msc

Step2. Locate to the following registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet\EnableActiveProbing

Step3. Set the value to zero.

Reference:

http://technet.microsoft.com/en-us/library/hh846772

4:

Run the following command every time you boot the system:

netsh winhttp set proxy x.x.x.x:y bypasslist

Symptom:

After you install Windows 8, you may find the CD/DVD drive is not recognized.

Resolution:

1. Run Command Prompt as an  Administrator. Type cmd in Windows 8 Metro UI and press cltr+shift+enter

2. Type following and say enter

reg.exe add "HKLM\System\CurrentControlSet\Services\atapi\Controller0" /f /v EnumDevice1 /t REG_DWORD /d 0x00000001

3. Reboot the system

4. Verify if the problem has been resolved.

Symptom:

You installed Windows 8 CP. The Win 8 is running very well. Then you install Hyper-V role.  After the install is complete, it reboots and gets hung at the start of the Windows boot process where the beta fish shows up.  The splash screen typically has a circle of dots.

Resolution:

Try the following workaround:

- Disable USB 3.0 in BIOS.

Symptom:

You upgraded from Windows 7 Pro to Windows 8 Consumer Preview, but found the Metro apps won't start when clicked. Sometimes, the app appears to start, the screen fills up with a green background with the app logo centered, but nothing happens afterwards.

You might find the following events when starting Metro Apps:

EventId 10010

Description "The server Microsoft.WindowsLive.Calendar.wwa did not register with DCOM within the required timeout."

Resolution:

A few things worth trying:

1. Update video card driver and firmware (verify it by switching to the Microsoft Basic Video Driver.)

2. Fix the OLE registry key. Please make sure to backup the registry before changes are made. (http://support.microsoft.com/kb/322756)

Save the below to a .reg file and merge.

====================================

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole]
"MachineLaunchRestriction"=hex:01,00,04,80,90,00,00,00,a0,00,00,00,00,00,00,00,\
  14,00,00,00,02,00,7c,00,05,00,00,00,00,00,18,00,1f,00,00,00,01,02,00,00,00,\
  00,00,05,20,00,00,00,20,02,00,00,00,00,14,00,0b,00,00,00,01,01,00,00,00,00,\
  00,01,00,00,00,00,00,00,18,00,1f,00,00,00,01,02,00,00,00,00,00,05,20,00,00,\
  00,32,02,00,00,00,00,18,00,1f,00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,\
  2f,02,00,00,00,00,18,00,0b,00,00,00,01,02,00,00,00,00,00,0f,02,00,00,00,01,\
  00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,20,02,00,00,01,02,00,00,00,00,\
  00,05,20,00,00,00,20,02,00,00
"MachineAccessRestriction"=hex:01,00,04,80,8c,00,00,00,9c,00,00,00,00,00,00,00,\
  14,00,00,00,02,00,78,00,05,00,00,00,00,00,14,00,07,00,00,00,01,01,00,00,00,\
  00,00,01,00,00,00,00,00,00,14,00,03,00,00,00,01,01,00,00,00,00,00,05,07,00,\
  00,00,00,00,18,00,07,00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,32,02,00,\
  00,00,00,18,00,07,00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,2f,02,00,00,\
  00,00,18,00,03,00,00,00,01,02,00,00,00,00,00,0f,02,00,00,00,01,00,00,00,01,\
  02,00,00,00,00,00,05,20,00,00,00,20,02,00,00,01,02,00,00,00,00,00,05,20,00,\
  00,00,20,02,00,00

Alternately you can also delete the OLE key and reboot.

Path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole

3. You need at least 1024X768 resolution for Metro apps to work.

4. Metro appsaren’t supported if you are running with a built-in administrator account (happens mostly when upgrading).

5. Check if UAC(User Account Control) is enabled.

Path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole

Symptom:

You installed the Win8 Server Beta without issue, but you are unable to install any roles or features like Hyper-V role. It just fails, no events in the Event Log.

You can install Hyper-V role through powershell (e.g. Dism /online /enable-feature /featurename:Microsoft-Hyper-V), but you can not start any VM you created.

Resolution:

This is a known issue with the beta.  Specifically - the user locale and the system locale need to match (they should not need to be English - just the same).

You can also change it in the Control Panel and Region. (Some customers reported the Format must be English (United States)).