Just telnet your favorite POP3 server and use these commands

1> Click on Start Menu –> Go to Run Command box –> Type regedit –> This opens the registry Editor.

2> Navigate to HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicensing

3> Delete all the keys under MSLicensing : both HardwareID and Store keys and their subkeys. If you are not sure how to delete the key and its subkeys, just rename them as follows : HardwareID to HardwareID-temp and Store to Store-temp.

4> Reboot the system.

5> After rebooting (ensure you are logged in as administrator), click on ‘Start‘ menu–> ‘Programs / All programs‘ –> Accessories

6> Right Click on Remote Desktop Connection and select the option “Run as Administrator“. This will recreate new Keys Hardware ID and Store under MSLicensing.

7> If you had renamed the keys and subkeys instead of deleting them, navigate to HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicensing and you’ll notice the two newly folders created – HardwareID and Store. Delete the old HardwareID-temp and Store-temp and close the registry editor.

This solves the problem and you will be able to connect to remote servers using Remote Desktop Connection.

However,
another way is to perform an administrative installation, using the /a
switch and specifying a target folder for the extraction. For example:

msiexec /a mm26_enu.msi /qb TARGETDIR=d:\temp\mmextract

To temporarily disable the PC Speaker beep:
net stop beep

To disable the PC Speaker beep for good (until you undo this setting):
sc config beep start= disabled

So, if you are bothered right now by PC Speaker beeps and want them to go away even after a reboot, run net stop beep and then run sc config beep start= disabled.

The space between start= and disabled is required.

Then execute the commands using the Diskpart command with the the /s
parameter, as the following example shows:
diskpart /s partscript.txt
The command creates one partition with all the space; alternatively,
you can replace the “create partition primary” with “create partition
primary size=” (e.g. “create partition primary size=10000″)
to create a 10GB C: drive.

To view the System Restore extension list:
1. Open Windows Explorer and select Tools | Folder Options and select the View tab.
2. Deselect the Hide Protected Operating System Files (Recommend) check box (if selected) and click OK.
3. In the resulting Warning dialog box, click OK, and then click OK to close the Folder Options dialog box.
4. Navigate to %systemroot%\system32\restore (%systemroot% is often C:\Windows) and double-click the file FileList.xml.

Disk capacity is measured using decimal kilobytes, megabytes, and gigabytes. In decimal units, 1KB = 1,000 bytes, 1MB = 1,000,000 bytes, and 1GB = 1,000,000,000 bytes. But for file sizes, memory, and just about everything else, we use binary kilobytes, megabytes, and gigabytes. In binary units 1KB = 1,024 bytes, 1MB = 1,048,576 bytes, and 1GB = 1,073,741,824 bytes. Looking at it another way, the decimal values are 103, 106, and 109 bytes, whereas the binary values are 210, 220, and 230 bytes.

To convert your disk’s 160 decimal GB to the units used by the rest of Windows, you have to divide by 1.073741824. The result is about 149GB—close enough to what you calculated. Sorry, there’s no missing 10GB for you to recover!