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)).
Symptom:
Customers installed Win8 and got the following error:
“We are not sure what happened, but couldn't finish installing windows 8 Consumer Preview. We've set your PC back to the way it was right before you started.”
Resolution:
Running setup from the root of the media within an existing Windows installation assumes that you want to perform a clean installation with data migration.
Running setup from the sources folder gives more of a Windows 7-like experience where it asks you what you want to do.