Error Messages Appear When You Modify Recurring Event Start and End Times

To resolve this issue, instead of attempting to modify a recurring event, create a new recurring appointment, configure the recurrence pattern, the start and end times, reminders, and so forth:

1. Start Outlook 2002, and then click Calendar.
2. On the Actions menu, click New Recurring Appointment.
3. Configure the details of the event as desired.
4. When you finish, click Save and Close.

 http://support.microsoft.com/kb/278197

lync 2010 enable users greyed out

Log in to the control panel with a user account that has been added to the CSAdministrator group and restart the server. 

office 2010 not installing

Microsoft has recently released the latest version of Office – Office 2010 for computers running Windows Operating System. The feature packed Office 2010 has been positively accepted by the users with most of them reporting positive reviews about it. However a few of the users are facing some installation issues with the software , where Office 2010 install process halts or stops unexpectedly before completion and then remains stuck there forever .

However this is only the start of the real problem. Most of the users today can fix this by starting the Task Manager and terminating the process. The actual problem is that the despite the failed install, users are not able to restart the installation process again. This is because the “Install wizard” does not start again as the previous setup was not completed. There is no entry of a failed installation in the “Add or Remove” programs list which makes the end users really helpless in such situations. The install can’t either be rolled back to older versions of Office (such as Office 2007) due to midway termination of setup.

To fix Office 2010 installation errors, follow these steps suggested by Microsoft
Step 1: Download and install the Windows Installer Cleanup Utility.
Step 2: Run Windows Install Clean Up.
Step 3: Highlight Microsoft Office 2010 entry in the list and then click Remove.

Note: If there are any other old or redundant office entries such as Office 2007 or other Office standalone  products such as Visio in the list, do highlight and remove them together.

Step 4: Quit the Windows Install Clean Up when cleanup process finished.
Step 5: Close all applications.
Step 6: Click Start, in the Search box, type regedit and press Enter to run Registry Editor.
Step 7: Expand the registry tree on the left pane and locate the following two registry subkeys:
HKEY_CURRENT_USERSoftwareMicrosoftOffice
HKEY_LOCAL_MACHINESoftwareMicrosoftOffice
Step 8: Right-click on the registry subkeys and click Delete to delete those keys.
Step 9: Open Windows Explorer, and then browse to the C:Program Files and/or C:Program Files (x86) folder.
Step 10: Perform the following actions:
If it exists, rename Microsoft Office to “Microsoft Office OLD”
If it exists, rename OfficeUpdate to “OfficeUpdateOLD”
If it exists, rename OfficeUpdate14 to “OfficeUpdate14OLD”
Step 11: Click Start, in the Search box, type %Temp% and press Enter.
Step 12: Empty (delete all files and folders inside) the Temp folder.
Note: If some files can’t be deleted, just skip them.
Step 13: Empty the Recycle Bin.
Step 14: Restart your computer. Try to install Office 2010 again.
These steps should fix the Office 2010 failed installation error.

 http://www.aeinrst.info/fixed-office-2010-install-failed-error-uninstall-office-2010-manually/

cannot find server name for address non-existent domain

To resolve this problem, perform the following steps:

1. From DNS Manager, open your forward zone.
2. Right-click on the "A" record for your DNS server, and then click Delete Record.
3. Click Yes to confirm the deletion of the "A" record.
4. Right-click on the forward zone, and then click New Host.
5. Type the host name of your DNS server and the IP address.
6. Select the Create Associated PTR Record check box.
7. Click Add Host, and then click Done.

If you receive an error when you click Add Host, then you may be having a problem with your reverse lookup zone. 
http://support.microsoft.com/kb/171789

To remove a user account from Lync Server

1. From a user account that is assigned to the CsUserAdministrator role or the CsAdministrator role, log on to any computer in your internal deployment.
2. Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server Administrative Tools.
3. In the left navigation bar, click Users.
4. In the Search users box, type all or the first portion of the display name, first name, last name, Security Accounts Manager (SAM) account name, SIP address, or line Uniform Resource Identifier (URI) of the user account that you want to disable or re-enable, and then click Find.
5. In the table, click the user account that you want to remove.
   

   Note:
   If you want to select multiple user accounts, press and hold down Ctrl, and then click each user account in the list that you want to remove. To select a range of user accounts, press and hold the Ctrl key, click the first user account in the range, press and hold down Shift+Ctrl, and then click the last user account in the range.

6. On the Action menu, click Remove from Lync Server.
   
   http://technet.microsoft.com/en-us/library/gg195816.aspx

Could not install the custom actions. The object could not be found." Error Starting Outlook

Delete the frmcache.dat file and start Outlook

1. Exit Outlook.
2. In Windows Explorer, open the following folder (depending on your version of Windows):
   
   Windows XP
   
   C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Forms
   
   Windows Server 2003, Windows Vista, or Windows 7
   
   C:\Users\username\AppData\Local\Microsoft\Forms
3. Delete the Frmcache.dat file.
4. Start Outlook.

Method 3: Repair your Office installation.

For detailed instructions on installing and repairing Office, see the following Knowledge Base Article:

How to install the individual 2007 Office features or to repair the installed 2007 Office programs
http://support.microsoft.com/kb/924611

DSGetSiteName failed: Status = 1919 0x77f ERROR_NO_SITENAME

To resolve this issue, associate a subnet with Default-First-Site-Name, and then manually set the site membership. To do so, follow these steps.

Back to the top

Associate a Subnet with Default-First-Site-Name

1. Click Start, click Programs, point to Administrative Tools, and then click Active Directory Sites and Services.
2. Double-click the Sites node that corresponds to the Site where the Exchange Server resides, and then right-click Subnets.
3. Click New Subnet on the shortcut menu.
4. Type the IP address, and the subnet mask of the subnet, and then click Default-First-Site-Name on the Site Name list. Click OK to close the New Object-Subnet dialog box.

http://support.microsoft.com/kb/322834

Exchange Setup does not work because of Domain Name System settings on the domain controller

To resolve this issue, make sure that the DNS settings on the schema master domain controller and the member server are pointed to valid internal DNS servers. If the schema master is the DNS server, make sure that the schema master uses its own Internet Protocol (IP) address and is the preferred DNS server.

To change the DNS settings:

1. Right-click My Network Places, and then click Properties in the shortcut menu to open the Network and Dial-up Connections dialog box.
2. Right-click Local Area Connection, and then click Properties in the shortcut menu.
3. Click Internet Protocol (TCP/IP), and then click Properties.
4. Change the preferred DNS server.

http://support.microsoft.com/kb/264001

topology builder encountered an issue and cannot publish this topology standard edition

Remove-CsConfigurationStoreLocation

run the above cmd from lyncserver management shell. this worked for me. 

registry unable to save permission changes windows 7

 problem solved by using psexec.exe to get system priviliges, and able to delete the keys. The command is: psexec.exe -i -d -s regedit.exe. download the software from below location.

 http://technet.microsoft.com/en-us/sysinternals/bb897553

copy pstools software to c drive.

 start cmd prompt in elevation mode .