2Brug af "Windows Embedded Standard 7"

udføre denne operation ved at indtaste “ewfmgr.exe c: -commitanddisable” ved kommandoprompten og genstarte din computer.

zCommit changes to disk.

Dette emne aktiveres, når EWF kører. Hvis dette emne er valgt, vil den aktuelle status for klienten (gemt i en cache) blive gemt i en flash volumen. Men status for EWF vil ikke blive ændret. Du kan også udføre denne operation ved at indtaste “ewfmgr.exe c: -commit" ved kommandoprompten.

Du kan se konfigurationerne for de beskyttede volumener ved at indtaste “ewfmgr.exe c:” ved

kommandoprompten.

File-Based Write Filter (FBWF)

File-Based Write Filter (FBWF) beskytter klientens hukommelse mod at blive overskrevet af en ikke- autoriseret bruger. Ved at begrænse omfattende skrivning til hukommelsen, tillader FBWF, at du bruger klienten i lang tid. Hvis du anmoder om I/O, sørger FBWF for, at klienten udfører sine handlinger med cachen i stedet for hukommelsen, så hukommelsen bliver beskyttet.

Data, der er gemt i cachen, bevares, mens klienten fungerer normalt. De fjernes, når den genstartes eller afsluttes. For at gemme ændringerne bør du skrive den relevante fil til disken med kommandoen commit. Hvis du ikke ved, hvilken fil er ændret, skal du deaktivere FBWF, ændre den, og aktivere den igen.

Du kan styre FBWF med forskellige muligheder ved kommandoen ved en kommandoprompt.

zFBWF Configuration

†Current FBWF status : Viser den aktuelle status for FBWF (Enabled eller Disabled).

†Boot command : Viser den FBWF-kommando, der udføres ved næste start.

†RAM Used by FBEF : Viser størrelsen på den RAM, som FBWF bruger. Hvis den aktuelle status er indstillet til "Disabled", vises den anvendte hukommelse som 0 KB.

†Threshold : Viser den maksimale størrelse på den RAM, som FBWF kan bruge.

zFBWF Command

†Enable the FBWF and reboot the system : Aktiverer den deaktiverede FBWF og genstarter klienten. Hvis klienten ikke genstarter, ændres kun startkommandoen til BWF_ENABLE, og den aktuelle status ændres ikke.

†Disable the FBWF and reboot the system : Deaktiverer den aktiverede FBWF og genstarter systemet. Hvis klienten ikke genstarter, ændres kun startkommandoen til FBWF_DISABLE, og den aktuelle status ændres ikke.

†Commit files : Selvom diskene er beskyttet af FBWF, kan du tilføje eller slette filerne, når du vil gemme på diskene. For at skrive ændringerne til disken skal du klikke på knappen [Write the changes to the disk].

zSession Status

†Current session : Viser de enheder, der beskyttes af FBWF og en liste med de mapper og filer på disse enheder, der er undtaget fra beskyttelse af FBWF.

†Next session : Vælger de enheder, der bliver beskyttet af FBWF, når klienten starter næste gang. Vælg også de mapper og filer, som du vil undtage fra beskyttelse af FBWF.

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