当我想用keytool创建密钥库时，我收到一条拒绝访问错误消息。见下文
PS C:\Program Files\Java\jdk1.8.0_144\bin> .\keytool.exe -keystore clientkeystore -genkey -alias client
Enter keystore password:
Re-enter new password:
What is your first and last name?
[Unknown]: ...
What is the name of your organizational unit?
[Unknown]: ...
What is the name of your organization?
[Unknown]: ...
What is the name of your City or Locality?
[Unknown]: ...
What is the name of your State or Province?
[Unknown]: ...
What is the two-letter country code for this unit?
[Unknown]: ..
Is CN=..., OU=..., O=..., L=..., ST=..., C=.. correct?
[no]: yes
Enter key password for <client>
(RETURN if same as keystore password):
Re-enter new password:
keytool error: java.io.FileNotFoundException: clientkeystore (Access is denied)
PS C:\Program Files\Java\jdk1.8.0_144\bin>
我该如何解决？