Policy
Limit the BITS Peercache size
Windows 11 25H2
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista
This policy setting limits the maximum amount of disk space that can be used for the BITS peer cache, as a percentage of the total system disk size. BITS will add files to the peer cache and make those files available to peers until the cache content reaches the specified cache size. By default, BITS will use 1 percent of the total system disk for the peercache. If you enable this policy setting, you can enter the percentage of disk space to be used for the BITS peer cache. You can enter a value between 1 percent and 80 percent. If you disable or do not configure this policy setting, the default size of the BITS peer cache is 1 percent of the total system disk size. Note: This policy setting has no effect if the "Allow BITS peer caching" setting is disabled or not configured.
Registry values
How enabled and disabled states update the registry.
No explicit registry values are set for enabled or disabled states.
Policy elements
Inputs and configuration options exposed by this policy.
| Element | Type | Registry mapping | Constraints & behavior |
|---|---|---|---|
Percentage of disk space to be used for the BITS peercache: ID BITS_MaxSize | decimal | HKLM\Software\Policies\Microsoft\Windows\BITS\MaxCacheSize Type REG_DWORD | Range: 1 to 80 |
Other policies in this category
Explore related policies at the same level.
- ComputerAllow BITS PeercachingAt least Windows Vista
- ComputerDo not allow the BITS client to use Windows Branch CacheWindows 7 or computers with BITS 3.5 installed.
- ComputerDo not allow the computer to act as a BITS Peercaching clientAt least Windows Vista
- ComputerDo not allow the computer to act as a BITS Peercaching serverAt least Windows Vista
- ComputerLimit the age of files in the BITS PeercacheAt least Windows Vista
- ComputerLimit the maximum BITS job download timeAt least Windows Vista
- ComputerLimit the maximum network bandwidth for BITS background transfersWindows XP SP2 or Windows Server 2003 SP1, or computers with BITS 2.0 installed.
- ComputerLimit the maximum network bandwidth used for PeercachingAt least Windows Vista
- ComputerLimit the maximum number of BITS jobs for each userAt least Windows Vista
- ComputerLimit the maximum number of BITS jobs for this computerAt least Windows Vista
- ComputerLimit the maximum number of files allowed in a BITS jobAt least Windows Vista
- ComputerLimit the maximum number of ranges that can be added to the file in a BITS jobAt least Windows Vista