User Profile Cannot Be Loaded

To solve this problem

you need to login in safe mode. To access safe mode you have to restart the computer and press F8 and login with your admin account. Then access the registry editor by typing in your run command (window+r) regedit.  

In your registry editor go to this folder HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\ProfileList. Then look for the user account that is having problem usually it has the same name but the difference is it has a .bak at the end of the file name as you can see in the image below.

Next is you have to interchange the file name of both folder by renaming the first folder to .ba then the second folder will have the file name of the first one and then change the first folder to .bak instead of .ba so the result would be as seen in the image below

Then you have to modify the RefCount and State of the file name that does not have the .bak. Just right click the RefCount and State choose modify then change the value to zero (0) to both. Refer to the image below

right click RefCount choose modify

Change Value data to zero(0) press ok

  Same goes with State. After restart your computer and you can now login to your account

Note: I am using Windows 7 64 bit and it is connected to the domain.

Reference:
Microsoft Support
iYogi

Enable Administrator account Windows 7 Domain

First thing you will do is boot your computer in Windows 7 and Choose Repair your Computer as shown below

Figure1

Then it look for available operating system and let you choose for a compatible OS then click next

Figure2

In System recovery option choose Command Prompt

Figure3

In your Command Prompt type regedit and it will show the image below. 

Figure4

Click HKEY_USERS then go to file tab then Load Hive

Figure5

In your Load Hide window look in the drive that is shown in Figure2, in my case it is in drive D:\Windows\System32\Config then select SAM, click open

Figure6

Then type SAM_TEMP and click ok

Figure7

In your registry editor go to HKEY_USERS\SAM_TEMP\SAM\Domains\Acount\Users\000001F4 then double click F

Figure8

Change '11' to '10' located in row 0038 as shown below then click OK

Before

After

Click SAM_TEMP then in your file tab choose Unload Hive and click yes

Close Registry Editor and exit the command prompt. In your System Recovery Option Window click Restart. When the computer is connected to domain just type .\Administrator and hit enter.


Reference:
Best Practive: How to enable a disabled Local Administrator account offline in Windows 7 (even when using BitLocker)

BOOTMGR is missing

To fix BOOTMGR is missing of a Windows 7 operating system you must have the Windows 7 installer. This error usually happen when a computer is not properly shutdown or force shutdown results to corrupted file system or it can be an operating system upgrade. First thing to do is boot (F8, F12, esc and etc) it to Windows 7 installer. When you see the figure below just click next

Figure 1

then choose repair

Figure 2

After it will search for a system recovery option as shown below

Figure 3

Then choose the Window 7 operating system and click next. Sometimes it will ask you to restart before Figure 4 is shown, if that happens just restart and then do the same step until you reach Figure 4.

Figure 4

You can either choose Startup Repair or Command Prompt

Figure 5

In Startup Repair it automatically check errors and repair it as shown below

Figure 6

until it will show you that it is fix successfully  then click finish.

Figure 7

In command prompt you just need to type bootrec /fixboot and press enter. Restart and you are done.

Figure 8

Reference : 

Fixing "BOOTMGR is missing" Error While Trying to Boot Windows 7 or Vista, 

What does the “BOOTMGR is missing” error mean?

Share Files between Win 7 Virtualbox and Win 8

I'm Using: VirtualBox 4.2.6, Win 7 and Win 8

First run Win 7 in virtualbox, from the device menu click install guest addition

If it won't install automatically go to my computer and click CD Drive (D): VirtualBox Guest Additions

and it will show you this just click next

until it will ask you to reboot your system.

Then you need to create a shared folder from Win 8 since I'm using windows 8 and I named it "shared".

In the virtualbox go to devices and then choose shared folder.

then choose the icon that is shown below

and then add the shared folder located in Windos 8 and then click ok.

After go to my computer and then click Networks.

Then if it will ask you to turn network just right click the message and choose turn on as shown below

Choose VBOXSVR network

When you find the shared folder you can map drive it for it to be accessible to find

Just click finish

and you can find your map drive in your my computer.

Now you are ready to share files from windows 7 to windows 8 and vice versa

Reference: WinXP VirtualBox