SCCM Configmgr 2012 ccmsetup installation failed Error Exitcode 1638By Eswar KonetiJune 30, 4:28 pm2 Mins Read10,276 Views Had a problem with sccm 2012 client installation today,it keeps generating error code 1638 from ccmsetup.log . File C:\Windows\ccmsetup\{181D79D7-1115-4D96-8E9B-5833DF92FBB4}\client.msi installation…