On the first page of the Restore Files Wizard, you have the option of clicking Search and specifying all or part of a file or folder name, clicking Browse For Files and selecting a file,
Trang 1To restore a file or folder from backup, click Restore My Files in the Backup And Restore
console By default, files and folders are restored from the latest backup If you want to use
an earlier backup, click Choose A Different Date, select the date and time from the list you are
presented with, and click OK
On the first page of the Restore Files Wizard, you have the option of clicking Search and
specifying all or part of a file or folder name, clicking Browse For Files and selecting a file, or
clicking Browse For Folders and selecting a folder You select a file or folder and click Add
File or Add Folder as appropriate Figure 14-19 shows a Word file called Backup and Restore
selected for restoration
FIgUre 14-19 Selecting a file to restore
When you have selected the files or folders that you want to restore, click Next on
the Restore Files Wizard You then have the option of restoring to the original location
or specifying a different location to perform a dummy restore You can either type in the
dummy restore location or browse to it Your dummy restore location can be on an internal
or external hard disk, a USB flash memory device, an optical drive, a VHD, or (in Windows 7
Ultimate, Enterprise, and Professional editions only) a network share
When you have specified where you want to restore your files or folders (or accepted the
default), click Restore If a file or folder with the same name already exists at that location,
you are given the options of Copy And Replace; Don’t Copy; and Copy, But Keep Both Files
(as with any normal file-copying operation) If you want, you can select the Do This For All
Conflicts check box You then select the action that you want Windows 7 to take If you want,
you can review the stored files Finally, click Finish
Trang 2Shadow Copies
Shadow copies are automatically saved as part of a restore point If system protection is enabled, Windows 7 automatically creates shadow copies of files that have been modified since the last restore point was created By default, new restore points are created every seven days or whenever a significant system change (such as a driver or application installation) occurs
You can access previous versions of a file or folder by right-clicking the file or folder in Windows Explorer and clicking Restore Previous Versions As shown in Figure 14-20, you then see a list of available previous versions of the file or folder The list includes both backed-up files and shadow copies if both types are available
FIgUre 14-20 Selecting Restore Previous Versions
If you want to restore a previous version of a file or folder, right-click the file or folder and click Restore Previous Versions Select the item that you want to restore and then click Restore, as shown in Figure 14-21 You need to take care to select the previous version that you want to restore because that file or folder will replace the current version on the computer and the replacement cannot be undone If the Restore option is unavailable, you cannot restore a previous version of the file or folder (possibly because the file structure has been changed) You might, however, be able to open the previous version or save it to
a different location
Trang 3FIgUre 14-21 Selecting a previous version to restore
You can use the Previous Versions tab of the Backup And Restore Properties dialog box
to recover previous versions of files directly from restore points on your hard disk or from
a backup If you need to restore a backup copy, you carry out the same procedure In this
case, when you click Restore, Windows 7 opens the Restore Files Wizard
If you cannot find shadow copies of some files, system protection might not be turned on
for that hard disk or the file might be an offline file Offline files are copies of files that are
stored on shared network folders Shadow copies are not available for offline files Shadow
copies are unavailable for files and folders that are required for Windows 7 to work For
example, there is no shadow copy of the system folder (the folder that the operating system is
installed in) or its contents
Recovering Renamed and Deleted Files
You can restore a renamed file or folder from a shadow copy, but you need to know the
location that the file or folder was saved to You do this in the practice in this lesson
You cannot directly recover a deleted file that has been removed from the Recycle Bin
However, you can recover a previous version of the folder that the file was in Take care,
because recovering the folder overwrites other files in the folder with their previous versions
The procedure to recover an accidentally deleted file that has been removed from the Recycle
Bin is as follows:
1 Identify the folder that contained the deleted file
2 Create a new folder and copy the contents of the folder you identified into the new
folder
Trang 43 Replace the folder you identified with its most recent previous version
4 Copy the contents of the new folder back into the previous version folder Permit any old versions of files to be overwritten by the newer versions in the new folder The file that was deleted will be in the previous version folder but will not be affected by the copy operation because that file will not be in the new folder
5 Finally, you can delete the new folder
Recovering Several Previous Versions of the Same File
If you recover a previous version of a file or folder (either created when a restore point was created or from backup) to its original location, it overwrites the existing file or folder If you then restore another previous version of the same file or folder to its original location, it in turn overwrites the version you created earlier
Sometimes you want to recover and retain several versions of the same file for historical reasons or in the course of an audit or an investigation In this case, you would use the Copy function on the Previous Version tab of the Backup And Restore Properties dialog box shown previously in Figure 14-21
For example, suppose that you want to restore several previous versions of a file going back the last four weeks Your first step should be to create a new folder to hold these files You right-click the current file, click Restore Previous Versions, select the previous version that you want to recover, and click Copy to copy it to the new folder (not to the folder that holds the current version) You then rename the file you have recovered, typically by appending
a month and day (such as Backup_and_restore_7_12 docx) You do this for all the files in which you are interested, renaming each in turn The renaming is necessary because all the previous versions of the same file have the same name by default, and you do not want any file to be overwritten
The Volume Shadow Copy Service
VSS manages and implements shadow copies, which are used for backup and to create previous versions when a restore point is generated, and manages volume snapshots
When you initiate a file and folder backup from the Backup And Restore console, the VSS creates a snapshot of the volume that contains the files and folders to be backed up, and the snapshots are backed up rather than the files themselves This speeds up the backup process and enables you to back up files on disk even when the file is open and you are working on
it Note that the backup process does not back up the changes you have made to an open file since the last time you saved it The shadow copy creates volumes that match the original volumes at the shadow copy point of time
VSS is installed on computers running Windows 7 As shown in Figure 14-22, its startup type is Manual The service starts as needed If the service does not start when required, shadow copies are unavailable for backup and Windows Backup does not succeed Nor can you create restore points and previous versions In this case, check the service and ensure that
it has not been disabled
Trang 5FIgUre 14-22 The Volume Shadow Copy Service
Restoring User Profiles
When you perform a file and folder backup, by default you back up all the files (the Documents
library, Pictures library, Favorites folder, and so on) associated with each of the users on the
computer Information specific to a particular user is known as the user profile In a small
network, user profiles are stored locally In a domain-based enterprise network, you can store
user profiles on a server and download them to a client computer whenever a user logs on
The second type of profile, known as a roaming profile, enables a user to log on at any client
computer in a domain; see that it is configured with his or her personal settings; and access his
or her libraries, Internet favorites, contacts, and so on As shown in Figure 14-23, user profiles
can take up a lot of storage space
If you need to reverse recent changes to a user profile, you can restore the latest backup of
the user’s profile by running the Restore Files Wizard from the Backup And Restore console
Typically, if you are restoring a user profile, you restore folders Restoring individual files is a
lengthy process
If you click Restore My Files in the Backup And Restore console and then click Browse For
Folders in the Restore Files Wizard, you find a folder specific to each user on the computer in
the left pane of the Browse The Backup For Folders Or Drives dialog box If you select one of
these folders, you obtain a list of folders similar to that shown in Figure 14-24 These folders
contain all the files and settings specific to the specified user
Trang 6FIgUre 14-23 A user profile taking up 2 7 GB storage space
FIgUre 14-24 A user profile backup
You can select each of the folders that you want to restore in turn and click Add Folder You need to return to the Browse The Backup For Folders Or Drives page for each folder you want to restore When you have finished specifying folders, your Restore Files Wizard page should look similar to Figure 14-25
Trang 7FIgUre 14-25 Specifying the user profile folders to restore
note SpeCIFYINg FILeS
If you want to specify a file in addition to (or instead of) the folders you are restoring, click
Browse For Files rather than Browse For Folders You can specify both files and folders in
a restore.
You then click Next and proceed as you would with a normal file and folder restore If you
are restoring corrupted user profile information, you would typically restore to the original
location
Configuring System Protection and Disk Usage
You accessed the System Protection tab of the System Properties dialog box in a practice
exercise in Lesson 2, when you were creating a restore point In the exercise, you clicked
Configure and enabled system protection for a disk drive A drive needs to have system
protection enabled if it is to be included in a restore point, which means that system
protection is also required for previous copies to be generated on that drive You will not find
previous copies of files and folders on drives that do not have system protection enabled
Trang 8It is appropriate at this point to examine the System Protection dialog box more closely This dialog box for the C: drive is shown in Figure 14-26 This figure is similar to (but not the same as) Figure 14-16 in Lesson 2
FIgUre 14-26 System protection settings
The Restore Settings section of the System Protection dialog box presents you with the following options:
n restore System Settings and previous Versions Of Files You typically use this setting
on disk drives that hold a system volume, for which this is the default setting It enables the creation of restore points that hold system information to be used during
a system restore If user files are held on the same drive, previous versions of the files are generated when a restore point is created Typically, Disk Space Usage is set to
a relatively low value (for example, 10 percent) because the disk drive is mainly used to hold system files that are seldom updated
n Only restore previous Versions Of Files You typically use this setting on disk drives that you use for file storage and that do not contain system files, such as a second internal hard disk If you create a restore point that includes a drive with this level of system protection, previous versions of the files are generated Typically, you would allocate a high percentage of Disk Space Usage (for example, 40 percent) for system protection so a large number of previous versions can be held
n turn Off System protection You typically use this setting on disk drives that are backup destinations You do not need to create previous versions of backup files because backup file sets already perform this function Typically, you would configure this setting on an external USB disk used as a backup medium
Trang 9eXaM tIP
Remember you can configure system protection only on hard disks (or mounted VHDs)
that are formatted using the NTFS file system You cannot configure system protection
or create previous versions on USB flash drives, optical drives, or hard disks (internal
or external) that are formatted using the FAT file system.
Configuring Disk Space Usage is a matter of individual judgment, although the general
guidelines are that it should be set to a low volume for system disks and a high value for data
disks When the disk space allocated to system protection is used up, the oldest previous
versions are overwritten If you are in an environment where users want to access versions
of files that are several months old, you might need to allocate a lot of disk space for that
purpose If users seldom need to access previous versions that are more than a week old, you
can allocate a lower percentage
Similarly, you need to think carefully about which of the Restore Settings options you
choose Although you typically select Restore System Settings And Previous Versions Of Files
for a drive that holds system files, you might have a computer with a single hard disk and
your priority might be to store as many previous versions of files and folders as possible In
this case, you could decide to select Only Restore Previous Versions Of Files and accept the
fact that a system restore might not solve the problem of a misconfigured system setting or
roll back a problem driver
note SYSteM prOteCtION SettINgS are NOt retrOSpeCtIVe
If previous versions of files and folders have been deleted because of the Disk Space Usage
limitation, they will not be restored by increasing the Disk Space Usage percentage setting
If you want to access the previous version of a file you created four weeks ago but you
find previous versions going back only two weeks, you cannot retrieve the older previous
versions by changing the Disk Space Usage setting You need to restore the file from the
backup set created four weeks ago (or as soon after that time as possible) Backed-up files
can also be considered to be previous versions.
Practice recovering a File You have renamed
In this practice, you recover the previous version of a file you have renamed
exercise Recovering a Renamed File
In this exercise, you select a file that has a number of previous versions and rename it You
then discover that you need to recover an older version of the file You recover the previous
version with its original file name You do not need to elevate privileges to complete this
exercise However, the procedure, as written, asks you to log in by using an administrator-level
account Unless you have sophisticated users, recovering a renamed file would typically be an
administrative function
Trang 10The procedure asks you to find a file (such as a Word document or an Excel spreadsheet) that has a number of previous versions Hopefully, several such files exist on your computer
If not, you need to create a file, perform a file and folder backup, edit the file, and create
a restore point The procedures for performing backups and manually creating a restore point
are described earlier in this chapter The figures in the exercise show a file called Lesson 2.docx
being used for this purpose You can choose a suitable file on your Canberra computer To recover a previous copy of a renamed file, perform the following steps:
1 If necessary, log on to the Canberra computer using the Kim_Akers account
2 Open Windows Explorer by double-clicking Computer on the Start menu
3 Navigate to a folder in which you store personal files
4 Open the folder and right-click a file that you amend regularly Select Restore Previous Versions
5 Check that previous copies of the file exist, as shown in Figure 14-27
FIgUre 14-27 Previous versions of a selected file
6 Close the file Properties dialog box
7 Right-click the file and rename it
8 Right-click the renamed file As shown in Figure 14-28, the Restore Previous Versions option is no longer available
9 To restore a previous version of the file, right-click the folder in which it is saved in the left-hand Windows Explorer pane, as shown in Figure 14-29, and choose Restore Previous Versions