Web Credentials in Credential Manager. In Windows 8, the Credential Manager stores one more type of credential, called as the Web Credentials, apart from the Windows Credentials, called Windows Vault in Windows 7. Web Credentials helps Internet Explorer 10 to store your web passwords securely.
One usually recovers quickly from fainting or near-fainting, but some people may have low blood pressures for up to 30 minutes and may feel groggy for the rest of the day. Causes. The most common cause of blackout episodes is a sudden reduction of blood flow to the brain, which is maybe due to: 1  sudden drop in blood pressure. 2  sudden change in heart rhythm. 3  postural hypotension (drop in blood pressure associated with sudden change in posture)
It is only when these symptoms appear regularly that there is cause for concern. Amnesia caused by substance use is a far more worrying symptom, but it may be common even for social drinkers. Blackout Defined. A blackout is a loss of memory caused by excessive alcohol intake or drug use. These substances cause disruption to the ability of the brain to form long-term memories. This interference occurs at the hippocampus region of the brain. The loss of memory can be fragmentary or complete. It does not damage previous long-term memories. The occurrence of this type of memory loss is usually associated with a rapid rise in blood alcohol content.