Limitations of ReadyBoost in Windows 7?

After having read that ReadyBoost in Windows 7 manages up to 256 GB on eight devices, I bought a 16 GB Sandisk Cruzer USB flash key, claiming that increased use of ReadyBoost.    However, when I ask to Windows 7 (64 bit Ultimate) to use the flash only stick for ReadyBoost, it says it can use up to 4 GB to 16 GB.   (I have 8 GB of RAM installed, but I guess that just on the ReadyBoost).    SanDisk support claims that this is a limitation of Windows 7.   After some research, I found that Vista also has ReadyBoost, but limited to 4 GB.   Perhaps this device was designed for Vista and take advantage of the upper limits of Win 7?    I am disappointed and perplexed.   Any input would be appreciated.

I'm trying to remember, but I think that the file format limits you. If you have a 32 or FAT16 format then 4gig limits, but if you use NTFS or exFAT (consider using exFAT if you do not need to use the stick in the old OSs) it must use all of it. I use a 8gig exFAT bat and it is accepted for Readyboost.

Tags: Windows

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