我不会将 hive 附加到 HKLM.您应该将其附加到 HKEY_USERS (HKU).这就是它的用途.

I would not attach the hive to HKLM. You're supposed to attach it to HKEY_USERS (HKU). That's what it's for.

试试:

reg.exe load HKU\Changeuser c:\users\testuser\ntuser.dat
Write-Host Loaded with result $?

您可以像这样访问它:

Set-Location Registry::\HKEY_USERS\Changeuser

如果您想要一个 PowerShell 驱动器(HKEY_USERS 通常没有)，您可以使用:

If you want a PowerShell drive (HKEY_USERS normally doesn't have one) you can use:

New-PSDrive -Name HKU -PSProvider Registry -Root HKEY_USERS; 
Set-Location HKU:

为了扩展，我已经使用 at.exe 作为服务帐户和本地 SYSTEM 帐户运行的 Task Scheduler 进行了安排，但除了成功之外我一无所获.我什至尝试过 HKLM，并取得了成功.我不清楚你在做什么，但我没有足够的信息来说明它失败的原因.

To expand, I've scheduled this with Task Scheduler running as a service account and as the local SYSTEM account using at.exe and I got nothing but success. I even tried HKLM, and had success. It's not clear to me what you're doing, but I don't have enough information anymore for why it's failing.