wmiadap.exe

Windows ProcessMicrosoft Corporation

Catalog search terms wmiadap, wmi reverse adapter, adap

WindowsSystem Component

WMI reverse adapter. E dey refresh AutoDiscovery / AutoSync of performance libraries into WMI. E no be WmiPrvSE.exe wey dey serve live queries.

Wetin you need know

wmiadap dey sync PerfLib enter WMI. E no be WmiPrvSE wey dey serve queries.

wmiadap.exe na di reverse adapter wey WMI dey run to refresh performance-library objects enter di CIM repository. WmiPrvSE.exe na di provider host wey dey answer Get-CimInstance. WmiApSrv.exe na di other direction: WMI data as counters. Short wmiadap run afta counter install na normal thing.

E safe?: Check the running file path, signature, and publisher. Name alone no fit confirm say e safe.
E dey answer queries?: No. WmiPrvSE dey do am
Why e run?: WMI tell am make e sync PerfLib

Feex tok say

If I see say wmiadap flash afta I install performance counter, I dey let di sync finish. I no dey end WmiPrvSE to "stop ADAP."

Wetin be wmiadap.exe?

wmiadap.exe dey sync PerfLib enter WMI. Na di reverse adapter, no be WmiPrvSE.exe wey dey serve queries. WMI dey start am to refresh Win32_Perf* classes afta counters change.

Wetin e dey do?

E dey parse performance libraries and e dey update WMI class state. E no dey sidon dey answer scripts. WmiPrvSE.exe dey load providers for dose queries. WmiApSrv.exe dey publish WMI as PDH counters.

Wetin make am dey run?

Winmgmt schedule reverse-adapter pass, counter installer run, or person invoke wmiadap /f. Copy wey never exit afta many hours na stuck sync, no be query storm.

Inspect the running instance

Inside Windows PowerShell, this read-only query show matching process IDs, creation times and executable paths on this PC. (pcm)

Get-CimInstance -ClassName Win32_Process | Where-Object { $_.Name -eq 'wmiadap.exe' } | Select-Object ProcessId, ParentProcessId, CreationDate, Name, ExecutablePath | Format-List

No result or a path we no fit access is inconclusive. Protected processes fit restrict access, and process IDs fit be reused. Keep personal paths local. (pcm)

Use the file-identity guide to compare signatures and product metadata. A filename alone no fit establish safety. (pcm)

E dey safe?

Check dis running file

System32\wbem\wmiadap.exe na Microsoft. wmiadap.exe inside Temp no be am. Dis file still no dey replace WmiPrvSE as di query host.

Compare the recorded location with the actual file. A familiar folder alone no fit establish identity. (pcm)

C:\Windows\System32\wbem\wmiadap.exe

Reverse adapter / ADAP refresh
Na WMI dey often start am, no be you
Query host still remain WmiPrvSE.exe

I fit end am?

Di PerfLib sync go stop

To end wmiadap.exe dey abort dat refresh. CIM queries through WmiPrvSE fit continue with stale counter classes. No end Provider Host to stop ADAP.

I fit comot am?

No delete wmiadap.exe. WMI need di reverse adapter afta counter changes. To disable Winmgmt na different, bigger decision.

E suppose start with Windows?

WMI dey start am on demand. E no suppose dey as Startup Apps checkbox.

Measure resource use

Measure the current process rather than assume a universal baseline
CPU and memory	Compare several observations for the same PID and workload. This entry get no independently measured universal baseline. (pcm)
Disk and network	Attribute activity to the actual process and current task; a filename alone no fit establish expected destinations or transfer volume. (pcm)

File information

wmiadap.exe file information
Executable name	wmiadap.exe
Recorded installation path	C:\Windows\System32\wbem\wmiadap.exe
Publisher	Microsoft Corporation
Signature check	Inspect the actual file; this entry no dey certify its certificate identity. (pcm)

Common wahala dem

Pipuru dey kill WmiPrvSE wen ADAP dey run

Dat one dey drop live queries. wmiadap na one-shot sync. Make you let am finish, den look di consumer if CPU still high.

Missing Win32_Perf classes afta counter install

wmiadap pass wey fail na di usual story. Run di documented refresh again. No replace WmiPrvSE.

How to troubleshoot

Diagnose before you change anything wey fit scatter things.

Wait for di reverse adapter, den query again

If you just install counters, give wmiadap one minute. wbemtest against Win32_Perf* na di check. WmiPrvSE load na later step.

No reset di repository because say wmiadap appear

Scheduled ADAP run na normal thing. Repository reset na for corruption, and e still no be substitute for dis exe.

Technical details

wmiadap.exe technical details
Image name	wmiadap.exe
Role	WMI reverse adapter (PerfLib into WMI)

Check the identity of running file

A filename alone no fit establish safety. Verify the actual path, signature and product identity. (pcm)

Sources and verification

Recorded source label: August 2026. Dis label no establish independent verification. How we dey do research.

Microsoft Learn: Performance Libraries and WMI · ADAP / reverse adapter dey move PerfLib enter WMI
Microsoft Learn: WMI start page · Live CIM queries na provider hosts, no be wmiadap
Foxhole process map · First-party samples on top Windows PCs. No be lab benchmark.
Microsoft Sysinternals: Sigcheck · Dey explain how to check file signatures. Dis reference no establish the identity or safety of any particular running file.
Microsoft: Get-CimInstance · Read-only local process-query method. (pcm)
Microsoft: Win32_Process properties · Documents process IDs, executable paths, creation dates and parent-ID reuse. (pcm)

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