If successful you can then restart the computer and Windows may boot up normally. Select ‘Startup Repair’ and wait until the repair attempt completes. Windows 10/8/7/Vista Fixīoot into the System Recovery Options using the preinstalled Advanced Boot Options or a Windows installation/recovery DVD – see the illustrated tutorial at Sevenforums for instructions if required. The fixes for Windows 10 and all earlier versions of Windows are very similar – they require you to recreate the BOOTMGR file. You manually compressed the whole of the system partition (via the drive’s Properties window). This is what happened in my customer’s case.įile compression (even when done properly) may slow down system performance anyway so it is a lousy thing for a ‘speed booster’ utility to do…
Such a program often causes this problem by compressing the whole of the system partition (usually the C: drive) to save space – including the crucial BOOTMGR file. You installed a ‘Speed Booster’ or ‘System Optimizer’ type of program – perhaps one with grand claims of boosting performance and with a super duper registry cleaner thrown in… See ‘ do I need a registry cleaner’ – the short answer is No.
