I initiated decryption of my bitlocker drive from Windows 8 recovery prompt. Any indication how long it will take?
Solution 1:
The answer is "it is expected." From a command prompt run as admin, use the following to check the status of the decryption:
manage-bde -status C:
Booyah! You should see the following output:
BitLocker Drive Encryption: Configuration Tool version 6.2.9200
Copyright (C) 2012 Microsoft Corporation. All rights reserved.
Volume C: [Windows 8.1 Pro]
[Data Volume]
Size: 238.47 GB
... Edit: There is more below including decryption status, too much to type ...
Source: Technet on manage-bde command line tool
Solution 2:
Got tired of command line bumping to see. This shows status, progress, estimated time to complete. To exit, ctrl-c or it stops when converted
# Author - Jack D. Pond # license: Available under the Creative Commons Attribution-ShareAlike License additional terms may apply. # Description: DecryptRemainingStatus # # 1. Escalates to administrator (if not already) # 2 Uses the "Write-Progress" to create a bar and provide some status # information (as well as anticipated length based on current) for # decryption status # # NOTE: You need executable status for powershell scripts. If you get an error: # If you downloaded this, you need to unblock the script # See what your current execution ability is: # Get-ExecutionPolicy # Set it to something reasonable (temporarily) # Set-ExecutionPolicy -ExecutionPolicy RemoteSigned # Don't forget to reset it to whatever it was before (In this case, Restricted) after your run the script # Set-ExecutionPolicy -ExecutionPolicy Restricted # # @Params # # -seconds [number of seconds in each monitor interval, defaults to 5] # # @example: # # PS>.\DecryptRemainingStatus.ps1 -Seconds 10 # # Get "Seconds" param # [CmdletBinding()]param( [int]$Seconds = 5 ) # Set-PSDebug -Trace 1 #elevate to "Administrator" (Required for manage-bde) If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) { $arguments = "& '" + $myinvocation.mycommand.definition + "'" + " -Seconds $Seconds" Start-Process powershell -Verb runAs -ArgumentList $arguments Break } [int] $millisecs = ($Seconds -as[int])*1000 [decimal] $xval = 100 [int] $intervals = 0 $xtext = (((manage-bde -status C: | findstr "Encrypted").trim()) -split '\s+')[2] [decimal] $startval = ($xtext.substring(0,$xtext.Length - 1) -as[decimal]) while ($xval -gt 0) { $xtext = (((manage-bde -status C: | findstr "Encrypted").trim()) -split '\s+')[2] $xval = ($xtext.substring(0,$xtext.Length - 1) -as[decimal]) [decimal] $completed = ($startval-$xval) [timespan] $elapsed = New-TimeSpan -Seconds ($intervals*$millisecs/1000) [decimal] $secsleft = If ($startval -gt $xval) {($intervals/($completed)*$xval)*($millisecs/1000)} Else {-1} Write-Progress -Activity "Remaining Encrypted: $xtext Elapsed: $elapsed Completed: %$completed)" -PercentComplete (100-$xval) -status "Decrypting" -SecondsRemaining $secsleft Start-Sleep -Milliseconds $millisecs $intervals += 1 } echo "Decryption Finished" pause