analysis of causes
< br >
1, it may be because the wireless keyboard is used for too long, the battery installed in the keyboard is exhausted, and the battery needs to be replaced.
< br >
2, wireless signal interference Wireless keyboard is 2.4Ghz wireless frequency band, which has Bluetooth wifi digital cordless phone, may interfere with him. If so, try a different Angle and see if it improves.
< br >
Win7 system computer using wireless keyboard does not respond to the solution
< br >
3, wireless keyboard placed for a few minutes do not use will enter the standby mode (power saving) This time to press the first may have a \"failure\" situation.
< br >
4, can be tested on other computers to see whether it is OK, if other computers can, then enter the BIOS there is a LoadFail-SafeDefault or LoadOptimizedDefault, restore the default Settings. If it doesn't work on other computers, take a look at the wireless keyboard and mouse model and check the manual.