Select the Disk Cleanup utility in the lower-right portion of the menu, and select Clean up system files. The Disk Cleanup utility should take a few moments to rescan the drive. In the dialog box that appears, click the Delete button; then navigate back to the Disk Cleanup tab, confirm that all items in the Files to Delete list are checked, and click OK. The Disk Cleanup utility should clear out outdated system files, temporary data, and other digital detritus.
Depending on how much junk data is on your drive, this step may take anywhere from a few seconds to a few minutes. After running the Disk Cleanup utility, you should clean out a few folders manually. Open the C: drive again, and double-click the Windows folder. Scroll down the list of folders and delete any files in the Prefetch and Temp folders. Be sure to delete only files within those two folders and not the folders themselves.
Next, navigate back to the C: drive, and double-click the Users folder. Delete all of the files in this Temp folder as well; then restart your system. Having completed the prep work, you can safely begin the Windows 7 repair installation. You must press F8 before Windows starts. Choose the option Repair Your Computer. Press and hold the Volume Down and Power buttons simultaneously until the device turns on.
Depending on your model, you may then have to enter your password and choose a language to enter recovery mode. On the System Recovery Options menu, select Startup Repair , and then follow the on-screen instructions. When it completes, restart your computer to see if it fixed the problem. Step 7. Sometimes, you will not see any operating system in this window, please click Load Drivers to install drivers for your disks.
Step 8. Just wait patiently until the process is completed and click Finish. When you try to manually run Startup Repair using installation disc, you may find startup repair not working sometimes and ask you to restore your computer with System Restore. Click Restore if you have a working restore point. If not, click Cancel. Then, you will see the Windows cannot repair your computer automatically screen with 2 options at the lower location, select " View advanced options for system recovery and support ".
After that, you will go back to the System Recovery Options window and select Command Prompt to boot repair Windows 7. Then, it will automatically pop up.
Wait a minute, please try Windows 7 startup repair command prompt chkdsk to scan the integrity of your file system and hard drive so as to rule out the physical problem of hard drive. Because it can also damage the boot sector and MBR. Then, try other command lines below. In the command prompt window, type the following command line and hit Enter after each one.
In the command prompt window, type the following command line in order and then hit Enter. If the above command prompt does not work for you, you still can try to backup and rename BCD first and then rebuild it via CMD. Step 2. Then, type notepad in the command prompt window.
After that, save the change and exit this window. Now, you will go back to the command prompt window. Type Yes to confirm if you asked. Then, hit Enter. You can try command prompt for Windows 7 boot repair above and see if it works. You never know when your computer will crash or become unbootable, thus it's suggested to backup system with a free backup software like AOMEI Backupper Standard. Here are some advantages of it.
In addition, its advanced edition has more useful features, such as, Event triggers, USB Plug in, differential backup, etc. It allows you to create portable version of this software and use it on any computer without installing it again. It's very convenient for IT maintenance and support engineers.
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