Only Guest account when mapping to network drive

Go to the group policy editor from the mmc and changed a policy on the offending computer. 

Computer configuration 
Windows Settings 
Security Settings 
Local Policies 
Security Options 
Network access: Sharing and security model for local accounts

Set to: 
Classic - local users authenticate as themselves

CD/DVD drive shows yellow exclamation in Device Manager

If your CD/DVD drive asking for drivers then follow the below procedure.

In order to delete upper and lower filters you're going to have to edit the registry. The usual cautions apply. If the registry is not edited properly your whole system can crash.

1) Close all open programs 
2) Click on Start, Run, and type REGEDIT and press Enter
3) Click on the plus signs (+) next to the following folders

* HKEY_LOCAL_MACHINE
* SYSTEM
* CurrentControlSet
* Control
* Class
* {4D36E965-E325-11CE-
BFC1-08002BE10318}

4) This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

* UpperFilters
* LowerFilters
* UpperFilters.bak
* LowerFilters.bak

5) If any of the above keys shown in step 4 are listed, right-click on them and choose Delete
6) After deleting the keys, close the Registry Editor
7) Reboot your computer
8) Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone

Enable Remote Desktop Connection on Windows 7 Home Premium SP1

1. Download this zip file and extract it to a location on your PC.
2. Navigate to the folder you just extracted and right click Install.cmd, then chooseRun as administrator.
3. You’ll get a window similar to the one below and you should now be good to go:

You can also enable multiple sessions per user, and the logging in of users with a blank password (although I wouldn’t recommend this). There are some switches that are available when running the program:

• -? – Show this help
• help – Same as -?
• multi – Enable multiple sessions per user
• blank – Enable remote log on for user accounts that are not password protected

So for example, if you wanted to enable multiple sessions per user:

1. Go to start and find Command Prompt. Right click it and select Run as administrator.
2. At the prompt type cd “c:\DIRECTORY\TO\EXTRACTED\FILES”
3. The prompt should switch to c:\DIRECTORY\TO\EXTRACTED\FILES >
4. Type: Install multi

How to remove the remote tab from the system properties panel?

You can remove the tab with : regsvr32 /u remotepg.dll

And add it back with : regsvr32 remotepg.dll

An error has occured while opening the library. VBA The hosting application is not correctly registered. VBA Make sure your hosting is correctly registered in the Windows registry base. . You can use V5RegServer as admin user to register it "

As the message suggests, we can then always run the RegServer of Catia and then goes again (until the next reboot)

For regserver run: Start (Windows) -> Run -> type cmd -> in the next window, enter the path to cnext.exe (Ex: C: \ bin apps \ DS \ BMW \ B19 \ x64 \ win_b64 \ code \) - > cnext.exe enter regserver.
Catia is apparently re-registered in the registry / registered. Then we can start the macro again.

Ex : In run windows type regserver C:\Program Files\Dassault Systemes\B20\win_b64\code\bin\CNEXT.exe

Enable hibernation on 64 bit Windows

To work around this issue on a computer that is running Windows 64 bit operating system, enable hibernation. To do this, run the following command as an administrator:

powercfg /h on

To do this, follow these steps:

1. Log on as an administrator.
2. Click Start, type cmd in the Start Search text box, right-click cmd.exe, click Run as administrator, and then clickContinue.
3. At the command prompt, type powercfg –h on, and then press ENTER.

CHKDSK runs every time I boot

1. click on your start menu and open the run dialog.
2. type "cmd" and return (note: dont enter quotes)
3. Next type "fsutil dirty query e:"
4. If the return message indicates that the volume is dirty go to step 5
5. Next type "chkdsk e: /f /x"
6. After that finshes repeat step 3.
7. If it is no longer dirty then reboot and you should notice no more
    ckdisk.