This nearly always means the command prompt was not run as administrator. manage-bde needs elevation to read or change BitLocker. Running it elevated fixes it. Jump to your situation below or work through the methods in order.
When manage-bde returns 0x80070005 (access denied), the cause is almost always that the command prompt is not elevated. manage-bde reads and changes BitLocker, which requires administrator rights, so a normal command prompt is refused. The fix is simply to open Command Prompt as administrator and run the command again. Less often, the account genuinely lacks administrator rights, User Account Control or a security tool is blocking the action, or a policy restricts BitLocker management. So if an elevated prompt still fails, confirm the account is an administrator, check UAC and any endpoint security, and review BitLocker policy on a managed machine. In the vast majority of cases, Run as administrator is the entire fix.
BitLocker protects whole drives, so reading or changing its state is a privileged action. manage-bde therefore needs administrator rights to do anything. Access denied is Windows refusing the command because the prompt running it is not elevated.
That is why the fix is usually trivial: open the prompt as administrator. The handful of other causes, a non-admin account, UAC or security software blocking it, or a restrictive policy on a work machine, only matter when an already-elevated prompt still returns the error.
“Nine times out of ten this is the simplest fix on the site: you ran manage-bde in a normal command prompt and Windows said no. Close it, open Command Prompt as administrator, run the exact same command, done. If it still says access denied after that, then we look at whether your account is actually an admin, or whether antivirus or a work policy is in the way. But start by right-clicking and choosing Run as administrator.”
manage-bde 0x80070005 is almost always a non-elevated prompt, so open Command Prompt as administrator and run the command again, which fixes the vast majority of cases. Only if an elevated prompt still fails should you check whether the account is an admin, or whether security software or a policy is blocking it.
If an elevated administrator prompt still returns access denied on a personal PC, a corrupt security policy or a damaged user profile can be to blame. Testing the command from another administrator account helps isolate it. You can also submit your error to us for a tailored fix.
