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Airin's Notes

Category: Windows 🠪 Startup
Chkdsk c: /f
January 23, 2021

Chkdsk c: /f
After running a chkdsk of the C: drive, Windows will reboot and run the scan. It will then reboot back into windows. To check the results, open Event Viewer, Application Log, and look for the Source to be Wininit.

Category: Windows 🠪 Startup
Create new Admin user
January 21, 2021

Create new Win10 user without password:
Boot from Win10 USB
Press Shift-F10
cd /d c:\windows\system32
copy utilman.exe utilman-.exe
copy cmd.exe utilman.exe
Press Ease of Access button in bottom right
net user useradmin /add
net localgroup Administrators useradmin /add
Reboot and login to useradmin account.
From admin cmd window:
cd /d c:\windows\system32
copy utilman-.exe utilman.exe
Over-right the file.

Category: Windows 🠪 Startup
Dell Computer Setup Bitlocker without notification
January 23, 2021
Try enabling UEFI/Secure Boot, PTT in BIOS.

Category: Windows 🠪 Startup
Password Reset
January 26, 2021
Run Command Prompt from Recovery Media
copy c:\windows\system32\sethc.exe c:\
copy /y c:\windows\system32\cmd.exe c:\windows\system32\sethc.exe
At login screen, hit SHIFT 5 times to open command prompt
net user user_name new_password

Offline Windows Password & Registry Editor
also available in Ultimate Boot CD

Category: Windows 🠪 Startup
UEFI Boot failure: bootrec /fixboot: Access is denied
January 24, 2021

Boot into Command Prompt from recovery media.
List disk
Select Disk X
list vol
(Look for the 100-300MB partition with FAT32 filesystem, probably the last one)
sel vol X
assign letter=v:

dir v:\ /a
: Verify this is the right disk, no important files are on it
format V: /FS:FAT32

bcdboot C:\windows /s V: /f UEFI

Category: Windows 🠪 Startup
Windows 10 won't boot, BCD error, blue screen on startup, etc
January 21, 2021

Run the following from a command prompt (run from Recovery or Win10 Install media)

bootrec /scanos
bootrec /rebuildbcd
bootrec /fixmbr
bootrec /fixboot

If you get an Access Denied error, follow these instructions

Category: Windows 🠪 Startup
Windows 8 won't boot, BCD error
January 23, 2021

Likely also applies to Windows 10

This site is meant to be used as a reference for myself, although others may find it useful. I use it to keep track of certain fixes, software, and other solutions which I may need while assisting customers. The page layout is pure HTML/CSS and is kept simple to optimize loading time and fast results.

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