Windows 8.1 is not correctly apply the Default Cache Size/Limit Disk Space Used by Offline Files policy.
I have followed this guide.

http://www.falconitservices.com/support/KB/Lists/Posts/Post.aspx?ID=158

Computer Configuration > Administrative Templates > Network > Offline Files

I have configured the policy as follows:

Locate the following policies:

• Limit disk space used by off line files (DISABLED)
  Disabling this policy allow limits higher than the default 10% of disk capacity to be used for Offline file cache.
• Default cache size (10000)
  Enabling this policy and configuring a cache size allows you to set the % of disk size that the cache will use.
• Prohibit user configuration of Offline files. (DISABLED)
  Disabling this will allow users to manually set their own % of disk size that the cache will use.

After setting the GPO I formated my CSC and logged in to see what the new setting was.

The result of this in Windows 8.1 was that an offline files cache of 1.29Gb (0.6%) would be created on my 200GB C: drive.

I tried changing the size to 9500 and 9700 but both are still setting a default cache of less than 1 percent.

I re-applied the GPO on several occasions using gpupdate /force to no avail.

There seems to be a bug in Windows 8.1 with the processing of this GPO item preventing it from creating a cache.

I checked the registry and the values entered into the GPO are what show in the registry.
If I disable the GPO and manually assign a cache size of 100% it works no problems.

I just want to set the default cache to be something closer to 90% then 1%

• Edited by burnin Thursday, August 20, 2015 2:58 PM

Hi Burnin,

I recommend you refer to the following article to configure the default cache size for offline files:

Configure Amount Of Disk Space To Use, For Offline Files in Windows

1. Disable Automatic Caching Of Temporary Files Using Registry Editor

2. Configure Group Policy for Default Offline Cache Files in Windows

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

Best regards,

Niko,

Did you miss my question in all this? 
I'm setting up the default cache size via a Microsoft GPO and it is not working. I understand that all a GPO does is set registry values. I think that the main issue of a GPO from Microsoft not working as described should be looked into. The GPO sets the same registry key that your article links to.

See my registry that is set via the GPO.



Anyone have any idea how to set the default CSC cache size via GPO? The above from Nikko isn't working.