There is no 100% secure method for anything.
near me what i think install Bitcoin-QT on a laptop or computer and save bitcoins inside and i am secure until no malware of virus came inside my computer but if am aware from viruses and malware then no one can steal my bitcoins
Your Bitcoin are not "inside" your machine. Your, or anyone else's Bitcoin, is nowhere and is everywhere at the same time. The chain has a record of the outputs of your address(es) to which you hold the private key(s) to. Bitcoin has no one physical location.
and about Software like Electrum and Multibit HD you have access to your private keys and seeds but where my bitcoins actually stored i think on 3rd party servers if Electrum servers are compromised does my bitcoin money is secured ?
Again, you have a fundamental misunderstanding of how a cryptocurrency works.
also same question for web wallet like blockchain.info if i have seed and private keys and blockchain.info compromised can hackers steal all money from blockchain.info wallet even i have private keys
Do not use online wallets.